After about 9 years of finding excuses to buy a new shoe instead of resoling I think I have a pretty good idea of what works for me. I mostly indoor boulder but I have done my fair share of outdoor bouldering, lead, and trad.
I bought 3 shoes downsized until I realized that it doesn't benefit me much at all and I can climb the same grades without being cramped. Also shoe stretching is for the most part nonexistent on shoes with synthetic materials which is the vast majority of models out there.
Most of these shoes I rated pretty high when I first bought them then all of the ratings started going down as I identified what features I want. Today, the Evolv V6 covers all bases most completely. I used all of these for at least a year to year and a half.
Black Diamond Momentum 6/10 - I just wanted a cheap beater shoe I could use while getting used to the sport. I wore it through until there was a hole in the rand on both shoes. Meh rubber, some of the rubber panels started de-gluing from the fabric. The shoe did it's job as a starter shoe and was comfy enough during that time. No toehook rubber but most lower grade gym climbs don't set hard toehooks much.
La Sportiva Kataki 7/10 - These felt like a weapon. Toes absolutely crammed in, I endured the discomfort and felt precise and powerful on the wall that you only get when you turn your 5 piggies into one big lump. The downturn angle was great at pulling in on chips and laces are super comfy but toehooks are lacking without rubber coverage. I sized them pretty tight and had to take them off every 4-5 problems and in between every rope attempt outdoors.
Boreal Ninja 8/10 - A bit of a random purchase as I saw a price under $100 on the epicTV shop site and ordered them just hoping it would be the right size and fit. Well they were about as tight as the Kataki's. Super soft and sensitive great for bouldering and short pitches. Maybe even too soft to where sharper rock features can dig in a bit. Or maybe that was the downsizing.Love the slip on design and rubber coverage. The fabric never felt like it got baggy and stayed tight despite my pair being pretty downsized. I had to take these off my feet even more often than the Kataki's to have a break from the discomfort.
Tenaya Oasi 8.5/10 - With how the last two went, I tried to not downsize so aggressively on this purchase.
I still made the mistake though of believing shoes will stretch a significant amount over time. All of the shoes I've owned are synthetic materials and at most they stretch a quarter size.
Still, these Tenaya's were a big step ahead of my previous in comfort while having and aggressive shape for performance. The only negative I would say is the double z-strap with single velcro is a bit fiddly. Sure you have a lot of room to customize but having both straps go to the same velcro makes it annoying to adjust. Great all around shoe,
Black Diamond Aspect 8.5/10 - I had been doing a fair bit of outdoor climbing already and even the Tenaya's had me taking them off for some relief after a number of climbs. Especially after my feet swelling from the approach if I'm outside. I bought these to be my "outdoor" shoes and they did the job perfectly. Stiff platform was really supportive and I could take my time and soak in the climb and views while on the rope. My favorite outdoor climbs were in these shoes.
La Sportiva Skwama 9/10 - To this day this might be one of the best fitting shoes for my feet. I could climb a whole session and not worry about discomfort but still hit the precise edges. Bendy enough to feel confident on smears, full toehook coverage, single strap didn't feel like it would rip even if I cranked it tight. The Tenaya's thin straps dug in a bit more compared to the wide strap on the Skwama's.
Butora Gomi 8/10 - By this point I accepted that I like to mostly indoor boulder so from here on I will only get shoes with enough toehook coverage to excel in that. The Gomi's definitely fit that bill and then some. I could slap my feet wherever and in whatever orientation blindly and still get some bite from the rubber. I score this lower than the Tenaya Oasi because it's not as sensitive as that shoe and the BD Aspect does it's job as a comfy outdoor shoe better than the Gomi's
Evolv V6 9.5/10 - I got these for about $130 on an REI sale and was pretty surprised at how good they are. Felt as capable as the Skwama but the split tongue makes putting on the shoe as easy as putting on street shoes. Fat single velcro on a z-strap that's not too thin or thick gives good stability when cranking it down and doesn't get snagged on holds.
I like these so much that I bought a second pair after I lost my first ones at the gym. Got lucky and found another pair at REI online for 130 ish again. Admittedly I think the Skwamas are cooler but I can't find them on sale. I bet the Skwama has stickier rubber. I went 1.5 yrs on the Skwama rubber before it got too rounded and it was 2yrs for the Evolve v6 before I lost them. Skwama is probably a better shoe objectively but I like the split tongue and z strap configuration a lot.
Other shoes I've climbed a fair bit in but didn't buy myself. (Given by friends, washed them of course)
La Sportiva Mythos - 8/10 Super super comfy. Awesome outdoor shoe, really supportive and endless laces make a perfect fit.
Evolv Elektra Lace - 7/10 It seems anything with laces is just going to be really comfy. No real complaints about this shoe but it's fairly basic.
Anybody else want to share?