It's been said, but let's hear it again, eh?
Lack of consistency?
Absolutely.
Eccleston was darker?
Sure thing.
..but Tennant is good?
Tennant is excellent. Just another taste in an already overwhelming blend.
Avoid episode 10?
Complete chum. I wish I had seen this thread earlier...
The "beast" two parter is good and the two parter season finale will break your heart a little. It's good stuff and if Torchwood is half the series we're in for some good times.