Justin Lundquist Baby Barlow has been my favorite for awhile and my most "pocket carried" tiny edc for the last year has been the production version.
The NCC Imp is amazing for such a little guy. The NCC MK1 Micro has unbelievable action, but the blade is 2.6" so it's just over my 2.5" rule for tiny (but man the action is amazing! It's pretty much drop shut which is crazy for such a small frame lock with a strong enough detent that it flies open 99.99%. Even with my fingers on the lock I've never had it not fully open).
The Spyderco Spin is my favorite tiny Spidy. I like it more than the McBee which is crazy because I love the McBee, lol. I like the co-pilot a lot as well.
I like every single under 2.5" Bestech a lot.
The Kershaw Chive got me into tiny knives back in 2003 and I still have that little guy.
As far as the tiny knife I carry the most, the Rike Hummingbird! There's been one on my keychain for more than 3 years and it's still an absolutely gorgeous tiny knife.
I should start a thread or YouTube channel about tiny (<2.5"blades) knives because I have tried and used (and still have) so many different ones that are rarely, if ever, talked about or reviewed (no slip joints though, hahaha. My left arm is paralyzed so I stay away from true slip joints. I don't consider my Isham Blackstar and detent locks slip joints, lol)