I have a squier Stratocaster (first guitar)now and I was wondering what are some of the differences between some of the higher end guitars like Gibson Les Pauls, SGs and Fender Telecasters and stratocasters. Im looking for things like Telecasters have thinner necks than strats and stuff like that. Im planning on buying a new guitar soon but cant decide what i want to get
i was just reading a topic about something like this about an Epi paul and a MIM strat, but its really the same type of idea

To start this off (and by no means is this just the only thing) ill say that the pickups make a big difference. It depends on what you like.
Fender 72 Tele Thinline (my baby)
Gibson SG Special Faded
ESP LTD M-1000
Peavy Vk 112
Boss GT-10