I mean, there are a million different kinds; my personal favorite was the CT-CV 105 HP; I’ve dropped 1 nuke, had 2 minutes to midnight (match ended before I could drop), and 1 shot down.
That’s my favorite, maybe not the best, but BR for BR; it’s fast, has DM33 at 10.0, gen II or III themals, and Falarick is decent for helicopter hover bugs.
Still the Ct-Cv 105 for me, it’s not OP or broken, but it’s good if you situate yourself and stay mobile like you should.
Other than that, I’ve heard loads of praise from the CV 90105, AMX-10RC, and really the whole Strf/CV series is good if you manage your preloaded magazine for the 40/70 properly.
Yet again, BR for BR, it’s the Ct-Cv from my experience, but on paper the AMX-10RC is even better minus the stabilizer.
I wouldn’t say there’s a single light tank that’s “better” BR for BR than every other light tank at its respective BR. There are very strong ones, like the IKV-91, BMP-2M, etc. but I don’t think there’s a single “best” LT.
After playing it 900 matches, I’d say it’s rather ‘mediocre’ than ‘OP’ how some people claim. It’s only best in shooting helicopters and flying straight CAS. Sprut-SDM is much better as a light tank.