Mike - the second plan looks better - but - it looks like you cannot really run two trains at the same time because they will be sharing track at the same time - only an issue if you want to let them run by themselves. You lost that in rev2. The connection between the green and yellow track is a one way in - there is a lot of backing up to get out of the yellow into the green. I do not get reason for the circle in the upper right.
Like everything in this hobby, layouts are driven by what the owner wants not what someone else likes or wants. For me, if I had the room, I would try to stick with a walk in plan and try to avoid lift outs. Looks to me like you have the space. And I would want to run several trains at the same time - set and forget.
