There's a huge difference between the two.Rachel was more evil, to me, because she SUCCEEDED in making Kermit give up, where Richman didn't really manage. I do wonder what would have happened to Kermit if Dani-el hadn't appeared though. I'm guessing that eventually Piggy would have gone out to get him and taken over the situation, similar to her role in The Muppets.
Tex wanted to take a dilapidated old studio that was all but abandoned that the Muppets didn't really care about, and demolish it for oil, only lying that he'd preserve it as a museum to get the deed. It's Walter who finds this the greatest injustice, and even Kermit feels an air of "that's terrible, but whatever."
Rachel wanted to take the theater they were still using at the time and going through various means to make sure they don't get the rent to her in time.
If that's the case, it comes down to what's worse... someone bulldozing your childhood home that you and no one else have lived in for decades that fell into disrepair, or someone evicting you from the place you currently live in the middle of the night because a check didn't clear in time.