I'm finally getting around to continuing with old DW while replaying Dragon Age. I am in season nine, on The Sea Devils. I've grown a bit tired of UNIT and the 'modern' Earth based serials. The 3rd Doctor is okay, but I more so find myself really enjoying the 1st Master. I really enjoyed how he was the "big bad" of season 8.
The serials still seem far too stretched out (like a Bendis comic), but the stories aren't horrible. I'm look forward to the Fourth Doctor just to (hopefully) get back off of Earth. I am also really looking forward to The Three Doctors. Seeing the first two again without missing episodes and in color has a lot of promise :D
I do like that the third Doctor seems to be the most well developed so far. However, that may be due to not having seen so many episodes of the 1st and 2nd.