Marnold got it right. The traditional Tele bridge pickup has a brass plate attatched to the bottom, which is why Teles have a funky route for that pup compared to a Strat. Tele neck pickups also have a darker tone to my ears.
Remember, ol' Leo thought the Strat to be an improvement over the Tele for country playing. He also didn't like the "quack" positions of 2 and 4 in a five way switch, which is why original Strats came with three way switches.