Should I choose Oshawott or Tepig

I've already use Snivy in white, for white 2 im not sure of who I want to go with I have used samurott before. Thing is I kinda want to try tepig. What are your guys thoughts? Also not sure what to put on the team based around them. Ik for sure I want to use escavalier krookodile and haxerous. Maybe you guys can help me fill in the fire water grass core as well?