You think it's just funner, but not funnest?
(I don't think that there's anything wrong with funner nor funnest.)
Yep. Freakin' superlatives. There are going to be
way funner iPods in The Future.
But seriously, yeah, "funner" and "funnest" are like nails on a chalk board for me.
So is the practice of pronouncing "hundred" as "hunnert'". These are related to each other only in that the people that I've known that use the word "funnest" are likely to pronounce the word "hundred" in that way.