Like the topic says, what was that instrument that was truly your favorite, be it a guitar, bass, drum kit, amp, ect & why? Do you still own it or did you sell it & regret it?
For me, it would have to be my Ibanez RG570. I bought it in '96 & I still use it as my main guitar. It's had a facelift & several pickup changes in it's time.
When I got it, it was one of those blue Metal Flake guitars, but I replaced the Ibanez pickups (V8, S1, V7) for a Dimarzio set (Steve's Special, Fast Track 1, Air Norton).
As I got tired of the sparkle finish (can't imagine why

), my buddy Kris & I refinished it & replaced the pickups again. Now it's a more traditional black with a white mother of pearl pickguard, with EMGs (85/60), with no middle single coil.

Happiness is like peeing your pants. Everyone can see it, but only you can feel the warmth.