All this testing will lead you to nowhere. There is no perfect radios for HD2 which works best for all HD2 hardware types. There is no radio which work good in all modes 2g and 3g(GSM or UMTS)(standby battery life i mean) without camera trick.
Non of this WP radios made specificaly for HD2.
Everything was already tested and proven - best WP radio 5.51 or 5.51T.
Hardware radio 2.10, 2.12, 2.14 or 2.15 - everybody should try himself - very dependent on hardware of particular phone - several modification of hardware exist and for one 2.10 or 2.12 is the best but for some 2.15
Just only if you have absolutly nothing to do - just for fun test it.
Even testing conditions different even in same place.