Sergio, I'm in complete agreement: there are guitar sounds that are "typical" of the type of guitar - tele, strat, LesPaul. And with the right application of overdrive, compression/sustain, and other studio effects, is is very possible to get almost any guitar sound out of almost any guitar. So for any given recording, figuring out what the guitar was at the start of the audio chain with no other information is very sketchy.
For example, David Gilmour recorded the solo in Another Brick in the Wall pt 2 (the "hey Teacher" song for all you non-Floyd Droids) on a Les Paul direct-in to the board (and then apparently back out to the amp and DI back into the board, according to gilmourish.com). No strat, no mike in front of amp. Yet he plays it live pretty darned close using his usual black Strat.
I must admit I could not reproduce Gilmour's sound on Run Like Hell until I got a tele, though. My strat and Les Paul just couldn't do it for me. Might be all psychological though.