generally people's view are that the tx200 is better out of the box but the hw97 is better after tuning.
in my view they have certain differences that may not effect you: the tx has a ball underlever catch, hw has a push button. txhc has a threaded barrel for any 1/2inche unf male silencer, hw has integrated silencer. hw has the barrel welded in place, tx is loctited (only worth considering if you ever wish to swap the barrels. hw has a central pellet loading port (easier for ambidextrous use) tx has an off set loading port (easier for dedicated hand). hw doesnt have anti bear trap, tx has o