If you are are going to compare apples to apples, you must compare the G70 with the XG110 model 1101 which is the liquid coupled version.
They are both on a par equal with each having strengths and weaknesses. The XG has a slightly better red color than the G70. The XG is more demanding on physical install and setup. They both use the same CRT's and lenses. The G70 is built like a tank and very modular and reliable if checked out.
They are really both great machines.
Terry