Revans. I hate the fact that Bay ruined SO much. However I've learned that if you watch them as stand alones - not connected to the comics or animated shows at all- they are at least entertaining. Like I told my other Transformer loving friends.... I go for the sexy cars and giant robots.... Basically the same reason I watched Pacific Rim before I realized how good it was - Giant robots and giant monsters.- Lol. If you are watching them as a fan of transformers previous they are literally the WORST. 
Also... It pissed me off that they killed off my favorite character in the first friken movie....