My daily tires are 225 45 17.
Again, it's a super common size and less expensive because of that. I plan on doing FK510's in 255 40 17 after these wear out. The current 225's only had 1000 miles on them and I tried to sell them with the Runlites, but my buddy wanted the runlites and I couldn't find a buyer for the tires, so I mounted them on my other set of RSe16s. I think I'll eventually end up with 3 sets of wheels again, but I'll use on set of the RSe16s for street, one for track, them get a set of 18 x 9 and try to stuff 265 35 18 under the fenders for autocross. Probably go with Apex.