I have thought about it a few days and have decided to buy offerings from both Lionel and MTH. I use Legacy and DCS so system isn't a consideration. I'm a complete nut for big steam,especially SP, so I've ordered the three Lionel SP GS-2's and the MTH Black GS2 4444. I got a darn good price on these! IF MTH had offered the GS4 in something other than 4449 (I have the 3rd rail "Definitive GS4 model" of the #4449) I would buy it.
I don't have the Lionel Legacy GS4 #4436,I've been on the hunt. for that one!
I hope Lionel will rerun the AC-12 with Legacy and new cab numbers.
Your prayers have been answered ( AC12's).
Check out the new Lionel 2014 catalog
I would love to Pr-order an AC-12 as they look great in that catalog but I pre-ordered the Visonline Big Boy so I have to watch my spendings..lol