Best to call
I agree about calling for tickets. I just reserved two seats for Tom Jones at the MGM. Website was showing seats way back. I called the 800 number and got two seats in Row B at a table for six. So my wife and I share the table with four other people, but at least we are within eyeball distance to the stage.
I think the computer selects seats for two without looking at tables that seat more than two. By calling, I did much much better.
BTW: Yes, we are that old to want to see Tom Jones.