DC or SLC....the big quandry

I have been trying to figure out where to live. The trouble is, it is very complicated. My choices: Washington DC, or Salt Lake City, Utah. I would love a new adventure, but life is established here. I have a job in SLC that I will LOVE, I have friends, family, everything. DC would be an adventure and awesome experience, and I would get to live with my bro and sis-in-law. I would have great training and opportunities by living there. I hear the singles wards are great, which is a plus. However, my very extensive pro/con list is getting complicated. I don't know what to do. I was leaning very heavily toward DC until this week when everything switched to leaning very heavily toward SLC. So, I have no idea what to do, and I am very confused. I am hoping that I figure this out soon. I need to make a decision and get things set in motion for my license this week. So, we are down to the wire. AAAAAHHH. What do I do? Any suggestions? Bleh. I don't like being a big person. I don't like real life.