Plantman has a great Megachip!
I forget which game had Starman though.
My favorites are Bass, and Shadowman, and Megaman.
Bass since he is awesome and over powered. (He makes an great secret boss)
Shadowman since he is a ninja, and is fun to play as in Megaman BN5.
and Megaman since he has lots of cool battle forms/styles.
Now I feel like making a topic on favorite battle chips, and battle chip folders combos!