I've seen about 10 random episodes of each and it was boring. Most episodes looked like time-wasters for the main storyline.
There were some good parts like some fighting scenes but since I've never got into that anime I've never knew which the good guys or bad guys were and why they fought.
10 episodes of what? There are 31 completely different storylines for Gundam. And, again, by how little you've seen, you're judging the series with too much bias. Watch 08th MS team, it's short, and the most realism based; it doesn't focus on the fighting as much, either.