I've been drafting Khans pretty much daily for close to a month now, and I feel like I've learned a lot. I had a very rocky start for about 15 drafts, but I've started to turn it around. I'm now winning more often than I'm losing, and I'm starting to get a better feel for what works best for my play style. I've had the most success with BW color foundations, which means both Mardu and Abzan are what's worked for me. Two drop creatures seem pretty vital for any archetype since being on the draw playing a morph heavy deck can have you very far behind, fast.