But those are pretty decent Digimon. If you have them, then you should be able to do a lot better, unless you just don't try hard enough.
It depends on if you care about PvP or not. Defense wise, Loader is the best. Ouryu is an awesome healer though and his defense isn't bad either. Braki and Yata have amazing attack power for defending your position, but that's not too important although it helps a lot in PvE. Both of they're defense isn't bad though so they aren't bad choices. Braki has more HP and think I'd rather go for over Yata.
Sooo, depends on your team comp and what you're needing.