Columbus, OH downtown happy hour?
I would head North on High and wander around the Short North. Lots of places at various price points.
This link offers Bodega (in the SN) as the best of last year: http://www.columbusunderground.com/best-happy-hour-of-2013-bodega-bo2013
It also mentions Lindey's, which is supposed to be a really nice happy hour, but would be a bit of a drive (10 mins or so) south.
or you could check out the new-ish 16-bit bar, which is a good deal of fun if you like that sort of thing: http://16-bitbar.com/events/