For casual consumption, I like Bonny Doon's Big House Red and Smoking Loon's Merlot or Cab, although I'll experiment with most any bottle in the $10 or less range.
For special occasions, I really love Treana Red.
I'm not a fan of white wines at all, I only drink reds.
And reading this, I realize it sounds like I drink a lot. LOL I don't. I go through perhaps 2 bottles in a month, a bit more during the holidays.