A few observations:
Spinning-reel casting distance is largely a function of large spool diameter coupled with small line diameter. VSs have comparativlely wide spools (compared to other reels of equal overall size) and so can allow good distance with fine-diameter line (e.g., 14# Fireline). Similarly, the old Penn 706 has a very wide spool and could be considered a distance-spinning reel. The Daiwa Emblems have huge spools and are probably the best as long as distance is the PRIMARY consideration. I have and use all of these. "Course if you really want to cast to the horizon, you'd wanna look at one of those Alvey thingies--the widest spool of all--which I haven't tried, but look like fun! Hope that's in some ways helpful.....
--OJ