It depends on what I'm trying to get rid of at the time lol...
Lately it's been DDTA, Redken So Long, Paul Mitchell The Detangler, and EVOO. It always has Paul Mitchell The Detangler b/c that's just the only way I can get through detangling right now. As far as the other cons, I'd recommend DDTA, ApHOGEE Balancing Moisturizer, Neutrogena DDC, Humecto, Kenra, Elucence, J/A/S/O/N cons, Giovanni 50:50, Kiss My Face Whenever, Paul Mitchell Tea Tree Con. There are a number of cons that would work for the con cocktail. Just mix your favorite moisturizing con with something you're trying to use up or something less expensive. The keys are 1) using some kind of oil in it (i.e. EVOO, castor etc) 2) deep conditioning w/ heat for at least 20 min. (my personal experience, not a universal law)
I know that adding The Detangler to my cons has been REALLY helpful. I just add two or three dollops to my con mix for that week, and apply as usual. My hair has been detangling like a dream at 14 weeks post.
HTH