JUST WANTED TO KNOW WHAT EVERYBODY THOUGHT ABOUT THIS QUESTION.WHICH FRAME WOULD YOU THINK WOULD BE THE STRONGEST FOR MUD RUNS,HILL CLIMBS,JUMPING OR JUST OVERALL HOLDING TOGETHER FOR A PERIOD OF TIME.(1.ROUND STEEL TUBE)(2.SQUARE STEEL TUBE)ALSO WHAT ATVS ARE MADE OF WHAT. ANY HELP WOULD BE APPRECIATE.HAPPY TRAILS AND TREAD LIGHTLY.