Flight safety is the best of all the major academies.
Costs are competitive, and in may cases, better than DCA, RAA, and American Flyers.
BIG advantage, you get to do your instrument in a multi. Remember you need 100hrs of multi to get a good airline job offer. If you get your CFI, and sign a contract to instruct for 800hrs (About 1 year), which you will probably need to do anyway, Flight Safety will pay for your CFII and MEI. No cost to you. Another HUGE advantage, since the instrument, commercial, and multi training is ALL done in a multi engine aircraft, most your time instructing will be multi time. It is not uncommon to see F.S. guys with 1000TT and like 500 multi!
No other flight academy even comes close to flight safety.