For me it's the (UK) Inderpendent. They have a good, realistic style of journalism without to much of a slant (apart from the contreversial IRA headline the other week which was stupid more than bias) and I like their stance on Burma and Tibet-supporting democracy in both and always reffering to both by their real names.
Most blatantly agenda driven paper I tried was the (UK) Telegraph......except for when I read a copy of An Pholact :D