Can't say I have ever had a favorite. Crazy to think about after decades of playing. I usually just default to a super strat shape, 24 frets, trem, super basic. 
I've had super nice guitars and was always anxious of damaging them so got rid of them and settled on production run guitars.
I have never been able to bring myself to get rid of a G&L Asat Special I have, even though I'm not much of a tele guy so I guess it'll have to be that one for me.