Wow nobody has posted here in awhile...
I think for show, the S14 comes out on top. It has very clean lines and a very elegant style to it IMO.
I believe the S13 weighs like 60-80 lbs lighter then the S14(though the hatch is heavier then the coupe) so weight plays a factor there a little bit.
I had a 90 Hatch and she looked good(before she got hit). I'm thinking about going S14 tho cause I want something that'll look good next to my friend's STI and another friend's Impresa RS. I don't think the S13 even in Sil-Eighty form looks quite as sharp in their company though I think it might hold up in Auto-X better.
Again just an opinion for anybody wondering