Just out of interest, whats do you dislike about MIOConsoleX? I think its wonderful, it really is very flexible.
I think you will notice a definite decrease in the quality of the pre's and converters by going to a MOTU interface. I have a 2882 and tested it alongside a MOTU traveller prior to purchasing and the difference was like night and day. Remember that the ULN-2 has better pre's than the 2882, so you might end up taking a step backward. Also worth mentioning is that the MH stuff is rock-solid and just works, you can also chain devices if you wanna build 16track or 24track in the future.
Can't really comment about the RME stuff. I've only heard good things about RME though so that would be my choice if you've ruled out the 2882.
good luck!