QPR are a fairly new team, as in, to the league and being built up. Hughes has a record of taking people and improving them drastically. Fulham improved a lot under him, QPR did last year as well, lots of new players will take time to gel and if they get Dawson, Carvalho that will basically be a completely difference defence.
Villa, good manager, should improve what they have, but they have so little to start with. Losing so many players and having seemingly next to no cash for any buys I don't really see where they are going to improve enough.
West Ham were hard to beat last year, already won a game, played like poop today but they had some issue at home last year as well. Few new players today, probably too many in key attacking positions but that defence. It was working well last year, Tomkins was great last year, this year stick him in midfield and put Reid/Collins in there. Demel looks better than I thought he would while Mcartney was way worse than he's been before.
Longer term Tomkins will be back in central defence with, probably Collins and Diarra in central midfield. Though Diarra looked completely awful when he came on. Not starting Vaz Te was mental and Diame did nothing after the first 20 mins, in the first 20 mins he was more active and on the ball a lot but did nothing with it, final ball being rubbish.
I think Swansea look stupidly good, did they have two really easy games and QPR/West Ham sucked that bad, or are Swansea noticeably improved over last season and QPR/West Ham just didn't really have a chance with a top 6-8 team whose particular style is going to cause a lot of weaker teams some real trouble. Bit of both really.
Far too early to call any "new" team as not being good enough to stay up, which includes those promoted and any with huge changes.
Remember how good Swansea looked last year, they didn't win till their 5th game though and the first three wins were Stoke, West Brom, Bolton, first draw with a top half team was Liverpool in the 11th game and first top half win was the 15 game. Starting slow doesn't mean a whole lot of anything for a new team finding its feet.