Well, don't shoot the messenger here, I'm going to be honest...
A lot of this probably boils down to partisanship. Pence is as generic a Republican as you can get. He'll make transsexuals use the wrong bathrooms, he'll roll back abortion protections, he'll crack down on marijuana legalization, he'll push military conflicts overseas, etc. But he'll be a boring corporate Republican all the while.
Trump, on the other hand, is a manbaby who is psychologically incapable of accepting that he doesn't have the yugest, the biggliest, the greatestest everything. If Obama's inauguration was more attended, he'll send the press secretary out to attack the press. If Obama had a cool cake, he'll have an identical one (even if it's made of Styrofoam). If you haven't picked this up from his nightly rants on Twitter, the man is psychologically incapable of letting anything go. He's not even capable of letting an insult from a D-list celebrity go.
And that's even before we get into the whole "with every moment in office he's violating the Emoluments Clause" thing. He honestly, legitimately, doesn't give a rat's ass about rule of law, as long as he wins, and gets to face a roaring crowd. And the truth is Republicans are 100% ideologically driven right now and will not do anything to police their own if it means they win. Frankly at this point I wouldn't be surprised if he just blatantly violated the law however he felt and then pardoned himself on the way out of office (or Pence does). Our system is not built to handle a leader who literally doesn't feel shame in this fashion, especially with the backing of a party that doesn't either.
Honestly it would be better for the nation if Trump was cut loose. At this point, it's a perfectly legitimate question what happens if he comes into real conflict with another world leader. That kind of baby isn't going to back down, he's going to throw a tantrum, and the US can throw a hell of a tantrum when it comes down to it. Literally the Navy alone could beat every single other military power on Earth combined, even before we bring nuclear weapons into it.
Pence will be generic evil dude, and he will be a lot more successful at pushing his agenda, all of which I disagree with. So in a purely partisan sense, it's better to have Trump in office. But Trump is fucking nuts, so in terms of what's better for the country I have to say Pence.
The question is when Republican congresspeople are going to realize that Trump is a millstone around their necks in many respects. I think many of them do already, but the problem is that Trump wields immense populist favor right now - much more than they do. Republicans overall are a minority, and they are only getting deeper into that hole, but Trump represents a majority of Republican voters and he's only going to keep pushing ahead.
Sadly, we seem to have slipped into the Actual Fascist Timeline.