Megamat Max vs Mondoking XXL- Am I overthinking it?

Hi everyone! I'm looking into finally getting a GOOD sleeping pad for camping/visiting family after years of only having a crappy 1 or 2 inch basic thermarest or random foam pad to sleep on and the regretful mornings afterward and am trying to make a decision. The general jist I've been finding is that the most comfortable pads are generally the Megamat Max/15 or Thermarest Mondoking, with the Nemo Roamer coming in not too far behind. I'm having a hard time finding much direct experience or comparison from people that have tried BOTH the Megamat Max and Mondoking though, so I'm still on the fence! If comfort and support are more important to me than the weight/size since this pad would almost always be used for vehicle camping or sleeping over somewhere, am I thinking right that the Megamat 15 may be the better option over the Thermarest, or is the thermarest foam a better quality?