From my own experiences, I really liked dealing with redwolf. They're really professional and shipping is REALLY FAST with them. The only problem I guess is that they ship EMS which is pretty pricey compared to standard airmail (but it arrives in 4-5 days) and also most packages send via EMS tend to get duties charged on them (I don't know why--just an observation). EHobby usually ships standard airmail (unless you buy a lot of stuff) and so I've never been charged duties from them (Well...only once way back when I bought a large order worth $200).
One thing I noticed was that the price of shipping on the same part differed from place to place, so it's best to shop around and get quotes from everyone. And sometimes, the prices tend to even out becuase the store with the cheaper product tends to charge more for shipping.