I prefer ESF's, but ultimately it comes down to basic melee (swoop punch swoop punch) and advanced melee (arrows... -_-), teleport, throwing (*cough*) and blocking. It is my oppinion that although it lacks the depth of Tenkaichi, it is faster paced and more exciting.
Tenkaichi allows you to swoop, teleport, block, counter or use a close-range ki attack to shatter blocks. You can sidestep or backstep attacks too and charge your punches. It basically takes advanced melee and replaces the arrows with an actual combat system. You can still do the BT equivalent of basic melee with decent speeds and knockback.