I could see the Wolverine one as a cover. It's not to my taste, but it's well done.

I'd vote:
X-Babies
Wolverine
yours and Florence's are about even
and the Gt-Size X-Men #1 tribute last. (I'm not counting B&W vs colour as two different covers.)

The trouble I'm having is, yours and Florence's are more to my taste than the Wolverine, but not as well-done. Makes it hard to decide. I gave it to the slightly better skill, though - which you yourself admit to.
I only looked at the thumbnails.

~ Le Messor
"If at first you don't succeed, skydiving is not for you."