Is their a commisary in Ikego?

Where you will enjoy living really depends on your lifestyle.  If you are planning to drive/explore Japan, Negishi is wonderful.  The houses here have much larger lawns and they are more like small homes.  The housing in Yokosuka and Ikego have much less character, but they are newer.  The commissary here is small and the only buses that run through housing are the home-to-work shuttles, so you must drive or be prepared to walk everywhere, but I like that.  I don't like the main base at all, but that's my personal taste.  If you have no desire to get out into Japan, base is fine because everything there is very convenient, but if you are interested in taking a quick bus ride to a professional baseball game (Go Baystars!), Chinatown, shopping, restaurants, zoo, etc. off base, then Negishi is the way to go.  One thing to consider is the age of your child and what school you want them in.  Explore a little about the schools in each housing area or the ones nearby if you plan to send them off-base.  But for what it's worth, alot of people we were in the lodge with got 2 bedrooms on the main base very quickly.  I think the wait for a 3 bedroom is much longer.  Again, I wouldn't want to be on main base though.  Just depends on how independent you are...Negishi = travel back and forth to main base for doctor appts, vet, etc. which can be a big pain if you're afraid to drive, but the quality of life out here for actually getting out and exploring the country is priceless.