[MENTION=6748898]ad_hoc[/MENTION]: How do you keep finding these things? I've been looking and looking and refreshing and refreshing. Still nothing!
I kinda dislike the conceptual creep here, which is just my subjective preference.
I like my backgrounds to be strictly in the background -- it's stuff that you used to do, then stopped doing, all before you became the full-time adventurer you are today.
Dog, Urban Bounty Hunter, for me hints a bit too strongly toward 'no see you're an adventurer and also still at least a part-time hunter of bounties' which leaves a bad taste in my mouth.
It's kind of a subtle thing, but it still bugs me a bit.
Since everyone isn't familiar with the rule some of us have been referencing, I'll quote it here from the Basic Rules p.36.
"Crunch from PHB" Blah, blah, rules, blah...
(Note the complete absence of the 'Variant' or 'Optional Rule' notation found elsewhere, such as with variant humans or skill checks with different abilities. By default, this is the rule. Unlike multiclassing, feats, or gnomes, which are only in the game if the DM says they are, this is automatically in the game unless the DM says it isn't, like fighters or longswords.)
You *always* get exactly 2 skills, plus a combination of 2 tools/languages. That plus an equipment package and a background feature is the mechanical definition of a background. The books tell the player's not just the DMs, that you can customize or make your own backgrounds using those components. The only thing you might even need DM permission for is if you want a feature that you can't pull out of an existing background.
So the only thing that could possibly be more or less powerful than any other background would be the feature or the equipment package. By the book, every player has exactly the same choices for skills and tools/languages.
(Note the complete absence of the 'Variant' or 'Optional Rule' notation found elsewhere, such as with variant humans or skill checks with different abilities. By default, this is the rule. Unlike multiclassing, feats, or gnomes, which are only in the game if the DM says they are, this is automatically in the game unless the DM says it isn't, like fighters or longswords.)