I use to love Pinkie Pie all the way back when I was around 6-8, of course the earlier generation. But even to this day I find her a fun character to watch usually. Intellectually wise Twilight is my favorite because she's so driven to being the best that she can book smart wise, etc. I'd say between like and love, as I am getting back into the series for being absent for like 3+ years from the show/fandom.