Haha "anti PMI". :D
I think the last 3 are pretty cool.
Though the 2nd needs some color tweaking.

First one sucks.
The text doesn't fit in, the colors are dull and the effects are unimaginative and look slapped on.

Also, have you noticed the copyright sign in the third? :p

the second one would do really well with a little bit of contrast work, as well as some colour tweaking as toolpunk said. i really, really like the last one.