Interestingly enough, I just got my "#1's" today, & was watching the DVD side, & saw "Survivor" again (for however many times). And I don't think they're that similar aside from the beach. I think it's 'cause too many videos have been done at the beach, I just got used to them.
I mean, even Ayu has done it w/ "SURREAL", "INSPIRE", AND "fairyland"...
But if you wanna talk about similarities, there's more. In "Survivor", there's a scene w/ the three girls in a pool of water under a waterfall...that's also in "fairyland". The one in "Survivor" looks really fake though.
Probably 'cause of the lighting.