^^

Really, keeping mind that it's not a spendy frame to beginw ith, I see surly frames going for quite a bit used all the time.

Instead of car analogies, I'll offer this:

Commuting: Surly probably takes the win here. Less flashy if you need to lock it up, more mounts for racks and fenders.
Racing: Neither is a purebred racer, but unless where you;re racing bans discs, I think the Poprad is the better choice
Heavier duty off-road: The discs are a plus for the poprad, but the Surly has massive tire clearance, so I'd say it gets the win here.
Touring: Surly, definately. It's got the mounts.
Fast group rides/supported long distance riding. Definately Poprad, though either can work.

If you're locking the bike up outside, it's not worth using either for your short commute. Get a 100 dollar beater off of craigslist for that distance.