Well, I'm not criticizing her or anything like that... she is a mainstream pop act and she must have massive sales, but she almost always promote the safer side of her singles
ok, alterna was a b-side... but green and sparkle weren't, and a lot of her b-sides that have a video are bolder than the a-sides she is promoting at the time

^ B-sides PV
INSPIRE vs GAME can go either way, but Inspire was something definitely different for ayu.
Fairyland vs Alterna bside
Blue Bird vs Beautiful Fighters
Talk'n 2 Myself vs Decision
By a lot of b-sides you mean just one?

Sparkle didn't even have a PV at the time of promotion and oh wait, she didn't even promoted Rule at all, except for for Next level, almost 2 months after Rule/Sparkle release...

GREEN is not a winter song, she made it close after MW. She didn't release it for the longest time, thus she focuses on a Winter single- Days -for the Winter.

Even thou all she's a mainstream artist, acts such as Bold & Delicious and MW as lead singles shows her experimentation. She's not the most experimenting artist out there, for sure, but she pushes boundaries with Jpop.

^She sang Rule once on TV and used it as her a-nation opener. This is promotion =)

Sparkle didn't have a pv at the time? Oh, wait, who chose what is going to have a pv and how is it going to be released? Oh... it's Ayu =)

Green wasn't a winter song while Days was? Oops, the promoted the safer track again =)

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I don't understand why r u replying to me this way, u r being sarcastic and agressive to me as I had bashed Ayu while I didn't... I just said that most of the time she plays it safe what btw is something I like about her considering that being controversial in Japan is not a good marketing as it is on the USA... being controversial in Japan just kills ur career... and Ayu found a way to release controversial or experiemental stuff without shocking general audience and even so, making sure that casual listeners are going to get her message if they like the safer track.