for performance, i think it's a toss up between the acer and the compaq based on the specs. build quality is good for lenovo.
if i were you, i would choose compaq over acer because it looks better (looks \styling is important), pero sa graphics, acer has an edge over the compaq but then again compaq has a little bit faster processor. choices, choices, decisions, decisions. yung lenovo talo sa specs vs. sa 2.