is that really a question? they all there for the download, and you have to decide yourself. as far as I can tell they are all high quality, very well made modifications, my favorite with no spefic order quality 1.8(the guy created slow mo and len fare flow graph after all) Alcatraz 3(better than 4 in my opinion) realness 1.3, and mahalod is a texture enhancement.
speaking of entertainment, Alcatraz 3/4 and quality 1.8 definitely take the cake, slow mo, dof adjustment, new weapon modification etc. are awesome,
none of them are like cheap made ones like the selection you get from crysis1, just download them and enjoy, don't forget to show your appreciation here too.