I think I may be biased. When I watched the animated version of Bure for the first time and I saw>>11789056>>11789100
this part, where he turns his head/lifts his head in time with the beat, I literally had a quasi hard-on. I rewound it and watched it again and again for about three minutes. Since I had never previously been turned on sexually by an anime OP before, I tend to prefer Bure.
Purely personal reasons. Purely sexual, really.