irving: good and bad areas. very diverse sort of in the middle of dfw so fairly close to everything. not an ideal place to stay.
addison: young professionals. nice condos/townhomes. very good nightlife/restaurants. easy access thru tollway. not ideal for families.
frisco: rich people. way up north. one of the fastest growing suburbs in america. soccer moms and baseball dads. all-american town. big mall in the town. good schools.
coppell: central located close to dfw airport. wealthy people. good schools. this and frisco are probably best bet if you have a family. just dont expect much diversity.
here's a ranking list of the dallas suburbs. you have lots of good options. just depends on what you want.
Best Dallas Suburbs 2012 | D Magazine