No, the TT does not have a BLITter granted, but it still does ( GEM ) graphics faster than any other Atari I have... Even the Stock Falcon is slower I feel.
I really need to have a look though cos I been called a tit before for saying that.
For General "Professional" work, such as WP / DBase / SPreadSheet / DTP / CAD and other office type work then the TT is a must
For Multimedia stuff, the Falcon.
For compatibility then the STE
In terms of RAW power, the TT is teh one to have... It is the fastest by a fair margin, but the FAlcon has all the frills