My favorite is Yeti and his Santa costume is the best of all. I find Yeti is particularly helpful in various types of challenges as his power is probably most predictable. On the contrary, Bubblegum Troll is probably the most unpredictable when it comes to releasing the gum.
It required minimum candy to get (8 purple candy). It covers whole board and can reach each n every square mostly. In most of the levels purple candy appears and the number of purple candy is maximum. So easy to activate (in my opinion). You can activate two striped candy together.
I would have to say that my favorite character to use in the game would be none other than (drumrollllllllll) Yep! That's right! The naughty Bubblegum Troll!
The reason I chose his royal sticky highness is because I think he is the most unpredictable, wild, and outright craziest character this far. Keep up the great work @KING, we know you all work hard to see that the game is not only enjoyable to play, but challenging enough to make a man spew forth a copias amount of profanity every now and then!!
I love the game and I love this community of colorful, wonderful people!