I personally find it pretty debatable if she's worse than Bella...but I do sympathize in hating Michelle.
I never got why they glorify her so much and think she's just the cutest thing ever, something about her looked odd like a Gremlin. But then when she got older out of her toddler age, I think she really started to become more annoying, such as how overly-snarky they made her (and do take into account I do like snark, but she overdoes it and not in a good way) and have her get away with things because she's the 'cute' little one. Um...no. I think
Full House is pretty bland and overhyped in the first place (heck, I'll even admit I never watched it as a kid, so it has little to no nostalgia for me), but something about her mere presence drops the quality even more with how much they shove her in our faces.
And I have to agree with you on Veruca, she's hilarious with how much of an obvious spoiled brat she is, and everyone knows it.