For future non BTSX DACS, AGS will also give the same as PTS, except that you can't sell AGS. For the BTSX chains, though, AGS is much more profitable as 1 AGS gives you 3.33 BTSXT while 1 PTS gives you only 1.3 BTSXT.
If you are more interested in the future non BTSX DACs, I would suggest you to buy in March. I expect a massive drop in both PTS and AGS price after 28th Feb.