My current lucky 7 are as follows:
1: Higurashi (This will change in 15 weeks)
2: Blood +
3: TOKKO
4: Witchblade
5: Kiba
6: Air Gear
7: Scrumble 2 + Yakitate Japan when I'm in the mood.
I also have a few on standby. Meaning I download them but do not watch. They are just storing away, ready for when I have time. The Melancholy of Haruhi Suzumiya springs to mind as one of em, Gintama is another.