I chose the water starter in every game since Gen 1 Blue Version up until Pokemon Moon. I fell in love with Rowlet and for the first time, I picked the grass starter.
Since Gen 2 Silver Version, my favorite starter has been Totodile, but now that I have Rowlet, he and Totodile are tied. If o had to just pick one, I'd have to go with Rowlet. I adore him and my Decidueye!