As Lew pointed out get one that is lightweight, vibrates alot on most chords and singlenotes.
Older Hamer strats with Duncans and Wilkinson trems(various models, two studs and the trad 6 screw one)Daytona or what ever the name was, one of my old buddies had one with a swampash body and thick one piece maple neck...extremely stratty, but on the nice side.
Old 80's Schecters strats...wow.
I had an Olympic white one for a few months, had a fake strat watermark(trans one) with a rosewood neck(Brazil rosewood I think it was, very dark and looked amazing in sunlight).
That is perhaps the single best strat I ever had...that one got stolen as well.
Sigh
It was equipped with old APS-1's