Ha, I'm guessing the OP is American, yeah? Sorry, didn't mean to stereotype, but, well, way to be a stereotype

Personally I like the use of foreign accents, they're not always exactly on the mark in Skyrim, but at least Bethesda didn't whitewash everyone with generic American ones, or bad English ones (Fable, I'm looking at you, you lisping cockney rejects - except Stephen Fry obviously). I get annoyed enough that every good world cinema film gets a rubbish English-Language remake.
The fact is though that places like Northern Europe and Britain etc have a very long heritage, the language in terms of regional dialect has been developing a lot longer than American, so for example in my native England you can spot a completely different accent in a town 15 miles down the road. I'd imagine your average English-speaking foreigner wouldn't know what on earth to do if a Geordie or Glaswegian spoke to them (thinking about it neither do I sometimes haha). I'm certainly willing to bet that the same applies to the rest of Northern Europe.
Personally though, in Skyrim, I think the Redguard work with an American accent, although an African one would be cool. The Dunmer should sound Japanese, Bretons should sound French, Imperials should sound a bit Italian/Mediterranean, and Nords obviously have more Nordic accents, Norwegian, Swedish etc. The Khajiit have a hint of Arabic which I think is spot on, and the Argonians have their own raspy sound which is distinctive enough as it is. Altmer would be cool with a well-spoken, posh, stuck-up English accent whereas the Bosmer could be more Celtic/Gaelic with Irish and Scottish voices (but not Welsh, sorry noone wants to hear that

)
In fact, I'd go one further - I'd like to see actual foreign languages spoken. Basically almost everyone speaks the common-tongue, but if two people with the same first language speak together it's completely foreign. You could then have speechcraft skills in 'translation' so various plot items said in other languages came up with English subs. Like you'd have to speak Argonian to overhear two Argonian shopkeepers being racist about your Dunmer character.