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which one do you prefer?

Edit:With the exception of Kent and Sain,Red cavaliars are more of a offensive unit.They usually have more strength,hp,defense than the greens.Greens usually have more skill and speed making thier Dodge and hit rates higher

I usually go with the red, but in FE7 I go with Lowen (I think that's his name) and FE4 I go with the green cause he double attacks.

QFT

There have been fast red Cavaliers (Kent), fast green Cavaliers (Lance), powerful red Cavaliers (Noish), powerful green Cavaliers (Sain), serious red Cavaliers (Kent), serious green Cavaliers (Kyle), upbeat red Cavaliers (Forde), and upbeat green Cavaliers (Alec).

The whole red/green Cavalier dichotomy has been assigned in every way possible considering the trope. It's been changed up enough that you can no longer say these are the qualities of the red, and these are the qualities of the green. The more games in the series you've played, the more obvious this is.

Generally speaking however, I guess I'd go with green if I had to have all the green Cavaliers or all the red ones.
FE1/11: I'm honestly indifferent in this one.
FE4: Alec has pursuit. Noish doesn't
FE5: ...can't comment... YET (I'm assuming I'll go with Kain though)
FE6: Lance doubles first ;3
FE7: Sain's Strength growth is enormous here and he still doubles without any problems, so I take him over the 'fast' of the two.
FE8: It's FE8, so it's riduculously easy regardless of who you use ;/
FE9/10: Oscar wins this one for me just because of that fabulous Earth Affinity more than anything else.

Red

But I think they should just for one game make them blue, just to mess with everyone

Red, they clobber the Generals with there Str. I usually keep my Priest near by always.

Kent and Forde are both Red, and yet they're the weaker of the two in terms of raw Str.

...Astrid's a Bow Knight. In earlier titles with that class, they promoted and were still stuck to mono-bow.

And for future reference, double posts are discouraged in most circumstances. Just edit your previous post if you have something new to add and you were the last to post.