-

Frame: Crystal Blue
Lens: Ti Clear
Pretty much the same fit as the Four S, IMO. However, with slightly larger and squared off orbitals, I think the Four presents a better look (Four S is just too small!). My Ti Clear lens is a bit odd, almost looks too dark (smokey) and not very reflective to be Ti Clear. A neat pair of eyewear, though, to provide a different Oakley look.
-

Frame: Black
Lens: Grey
Recently made a deal for the Blade II limited edition. Not so much because I love the style or the colorway, but because I feel this is a special pair due to it being used in the movie. I have it on very good authority that they are quite limited, and I am all about the limited editions. I find that sooner or later everyone wants something that was at one time limited, so I don't deny myself. If I can get my hands on something special; I do it. If it turns out I don't like it, it's probably already worth more than the day I bought it. Like a rare car. This is a cool piece of Oakley and movie memorabilia and I like that.
As far as the Four is concerned, it is a basic, classic, no nonsense pair of shades. Not too dated, but a nice contrast to the beefy square shades that are dominating the market at the moment.
-

Frame: Black / Black / Crystal Blue
Lens: Grey / H I Blue / Titanium Clear
Retro coolness! Fit really well, nice and comfy. Really good value, and look distinctively O. A really nice design, and I wear these more often than I thought I would.
-

Frame: Black
Lens: no lens as of yet
These have a great classic styling to them. One draw back would be the lack of unobtanium on the arms so the will move around a bit if they dont fit snuggly enough.
-

Frame: black
Lens: HI Blue
I wanted a pair since seeing Blade. I got the black/grey ones for my wife but she didnt like them and I sent them back as I preferred the HI Blue ones. Reason for the low rating is the reflections on the inside of the lenses due to a lack of curvature.
I am contemplating getting contacts so I can wear these on murky days.