United Megatron looks better than Henkei Megatron. Not enough for me to rebuy it, but if I didn't have either I'd buy the United one. The bright pink on United WFC Prime makes me prefer the subtle pink on Hasbro version. Hasbro's Drift still looks fine to me.

I look forward to seeing comparisons of Blurr and Thunderwing (so I can decide if I will open my Hasbro ones).