Most of my lights are AAA, or 18350. I have a few AA/14500 and 16340. I own Zero 10440 or 18650 lights.
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By LED:
The vast majority of my lights have Nichia 219b LEDs, plus a few other High CRI LEDs. I own Zero lights with Low CRI LEDs (unless they are hosts I like, for an LED swap).
Ti3
SC21
EO2 II
IF22A (Wish I had one for myself but bought multiples for gifts.)
I could likely grab my wife’s EO2 II if something happened to mine and I maintain my old Ti3 along with my Ti3 V2 but for the most part if I by multiples they are for gifts.
Left off SIPIK clones though I have multiples of them an not longer care;-)
Multiple C8s mostly gone. Still have a couple with the Convoy being a very solid light though it rarely gets used now that I am in the city.
I have a few S2+
ZL SC62 and a SC62w
Reylight Pineapple and Lan (both Ti)
Two purple FW3As
Two Jaxman E2L
I briefly owned two of a Thorfire… TK18? But gave them both away iirc. And paid for neither…
Convoy S2+ (x2) way back in 2015
Jetbeam Mini One keychain lights (x2)
Nitecore Tube v1 keychain lights (x2)
Maratac CR123 (although in copper and stainless steel)
Massdrop (Lumintop) AAA (although in copper and brass)
I have probably 10 lumintop tool AAs, most with nichia emitters. It’s my go to EDC. I also have probably 8 Olight I3Es - Great keychain lights. And I’ve probably got at least 20 convoy S2 variants. Mostly all home builds though.