I like Totodile and Sandile pretty evenly, I like Croconaw better than Krokorok, and I like Krookodile better than Feraligatr.

Hm... tough choice overall. I think I'd have to go with the Krookodile line. They just stood out to me more overall in their region. Plus I've used them and they are beastly in battle. Feraligatr are cool, but they are one of my least favorite starters. I'm not a huge fan of their design, at least comparatively.

Although I will say Feraligatr would likely win in a battle. Plus Dragon Dance helps its case some.