NE Tarrant County, minutes West of DFW, seems to be the place where many pilots are living these days.
Expensive pilot ghettos: Southlake, Colleyville. Homes here have skyrocketed. Those that built in the early '90's have made a lot of money due to appreciation, but taxes on a $220,000 home in Southlake are now running $12,000-$15,000+ because the home is now on the books at $700K to $900K! So your monthly house payment of $1500 is now $2600 due to taxes.
Moderate ghettos: Keller, Bedford, Flower Mound, Grapevine. A very nice home in any of these cities will have taxes ranging from $4k to $8k.
Anyone moving into this area, I'd advise looking for a home or lot North of hwy 170/114. The historical trend is that there is Northward development creep, which has increased real estate value up to 10X purchase price over just a few years. Look for some acreage in the areas Southwest of Denton, and you'll probably do very well.
One of the hotter cities is Westlake, which has no city tax, only school tax. Fidelity Investments has a huge facility which pretty much funds the city with it's business taxes.
Good luck, any of these cities will set you up with a 20 minute drive to DFW.