1: What traits are most important to you in a prospective partner?

Attractive, intelligent, interesting. Interesting is particularly important.

2: What kind of role would you want your partner(s) to play in your life?

Sex, romance, companionship. A source of interesting thoughts, pastimes, ideas -- contribution to my personal feeling of growth.

3: How much time would you spend together, ideally?

Several nights a week. 3, 4 days / nights is about ideal.

4: How important is it to you that you share similar tastes?

Relatively unimportant. Having some shared interests seems important as a point to grow things from. However, I want friends and partners who bring things to a relationship which I do not (and vice versa).

5: How important is it that you be ideologically similar?

It's not, barring dealbreakers below.

6: What, if anything, are your dealbreakers?

Thinking their morality is all morality. In particular, people on dating sites who write in profiles that they want a 'moral' partner are an instant turn-off.

No sense of curiosity, wonder, someone who doesn't actually think about things. Someone not trying to broaden their horizons, who has found a niche and is happy to be stuck in it.