Everyone likes a really good texture pack, right? So I compiled a list of the truly best!
Here it is:

Sphax BDcraft - http://www.planetminecraft.com/texture_pack/sphax-purebdcraft-x16-v065-for-mc17/
Maxpack - http://www.planetminecraft.com/texture_pack/maxpack-v120/
RetroNES - http://www.planetminecraft.com/texture_pack/retrones/
oCD - http://www.planetminecraft.com/texture_pack/ocd-pack/

Sphax BDcraft is and old-style texture pack which is great for medieval buildings and castles.
Maxpack is a smooth, bright pack which works really well for modern houses and buildings.
RetroNES is a NES, the orginal gaming system, inspired pack for Mario-themed maps or retro maps.
oCD has no harsh colours and has all even spacing as well as all angles at 90 degrees.