New to the site, not new to Digimon!

While I am still in the process of getting used to the setting, I've already got a few (solo) digimon in mind to RP as. I'll be making a character application once I pick, but it's hard to narrow down what I've got. I have been developing a particular OC for awhile now, but it's also hard to pass up RPing him with his twin, or RPing a custom digimon....