"Awesome" really makes my skin crawl. "Awesome sauce" is far worse still. It's such an exaggeration. Maybe "awesome sauce" makes fun of that, but just using anything without adding anything meaningful... Use something like marvellous. I like marvellous.

I really can't stand "like" as an introduction of a rhetorical question or as a completely unnecessary filler, like anything. I mean, like, what are you like?

I use basically a lot, but I try to use it meaningfully.