Re: Starting with all 3 starters?
Not being a competative battler myself I can't argue any side of the matter. I do try my best to acquire every starter after my journey but concerning me playing Hoenn and Sinnoh, some starters are more suitable for some gameplay than others. I mean in the case of Unova: Snivy's line (though I'm no fan of Grass-types as they suck typewise) can hold a defensive set, Tepig's line can hold a more Physical-based attack set, and Oshawott's line can hold a Special-based attack set.
And for those who want to argue that starters suck competitively, tell that to Blaziken, Infernape, Empoleon, and Swampert.