I would say that the GoLite Energy is least suited as a base layer. It is made with Pertex Equilibrium that is unlined, so there is no tricot or knit lining that serves to provide both warmth and improved moisture transfer (by absorbing sweat, and distributing it over a larger surface area so it can more efficiently be transported through the Equilibrium). Thus, I think the GoLite Energy would be a fine shell over any knit base layer.
The Rab V-Trail top has a microfibre pile lining - about the weight of a very light tricot - and is a superb next the skin layer. In essence, the lining provides the same function as a conventional base layer (soft feel, wicking, insulation).
The Buffalo Equimax Jacket and the Parrot Concure Pull-On both have Coolmax linings, which are very light, reasonably comfortable next to skin, and provide excellent wicking ability. The Parrot Concure, in particular, it a great design that is ideally suited for a base layer, although it is a little long for my taste (it is long because it's primarily marketed to the bicycling community).
How to integrate a garment like this (i.e., the Rab V-Trail Top) with other layers is more fully discussed in the recent artice on winter clothing:
(M) Winter Backpacking Comfort: Lightweight Gear and Techniques for Shelter, Clothing, and Sleep Systems