1629 is a very consistent mid level scorer and is able to play through defense, and is definitely a team to watch at champs.
That being said, we picked 340 at Buckeye for a reason. With a guaranteed 10 points in auto, smart driving, quick scoring, and good balancing, 340 and similar teams are poised to make their presence known at champs. They might not be the flashiest, but any consistent fender bot with smart drivers is perfectly capable of taking home hardware.
Also, defense will get better as the season progresses, but so will teams' ability to play around defense. Check around 1:30 in this video
http://www.youtube.com/watch?v=h2oTSZOtqq4 for an example of 1507 and 340 working together to clear the fender.