Is Drake copying Lil Wayne or is Lil Wayne biting Drake?

Also, isn't Drake sort of biting the Phonte Foreign Exchange sound? <--a href="http://www.imeem.com/krayzeejoey/music/xXI69NWC/drake-share/?rel=1<--" rel="nofollow"http://www.imeem.com/krayzeejoey/music/x…/a that sounds like a blatant rip off