I don't see how you seriously say that. I love McHale and there is no doubt he was a very good player. But KG can do things McHale couldn't even think about doing (one of which was passing). McHale may have been a slightly better scorer then Garnett, maybe. After that, KG gets the nod in almost every other area.
Put McHale in a situation where he doesn't have one of the top 5 players of all time along side of him and we would have probably forgot about him by now.