Actually, Draco69, you have made some good points, but some of them are flawed.
Thing is, in reality, a low class 100 level now in strength. He is. He's been getting stronger and stronger over the years, and that's where he's at right now. And no, I don't doubt that Sasquatch is either. But Thing is right up there with him in strength. Strength is not the key factor here. Experience, speed, agility, durability, and endurance. I'd say those are the key points.
And Sasquatch has also fought Juggernaut. Uncanny X-men #422. I have the issue right here in my hands as I type. It's a very awesome fight, but, not to be biased, but Juggernaut is clearly not giving his all. There is a scene where there is a smoking crater where Juggernaut and Sasquatch hit each other. Juggernaut gets up pretty quick, while Sasquatch is still smoking from the power behind the punch, barely able to speak.
Sasquatch says, and I quote "Good, God...Wait, man. Hold up a second." He is quite hurt in that scene, not wishing to continue.
Then of course, Juggernaut says "I don't stop for nothin', pal. I'm JUGGERNAUT." Then he proceeds to punch him with a monster left hook, sending Sasquatch flying very far, right through a car. Later in the comic, Juggernaut then punches him through a rather large tree, knocking it over. Basically what I'm saying, is that Juggernaut could've destroyed Sasquatch, healing factor or not.
And that was Juggernaut just wanting to send a message. I think if the Thing with his low class 100 strength and EXPERT fighting ability will be able to take on Sasquatch. It would be a great fight, I won't lie. I'd love to see it.