Shawn H, Schwinn recently was bought out by Pacific, who sells bikes at Wal-Mart. Spend a few minutes going through the forums and you'll quickly see that Wal-Mart bikes are disdained. Gaint makes great bikes with big bang for the buck. The Iguana will probably be better equipped than the others you mentioned. A Manitou Six is a better fork, RockShox Judy TT's have no dampening adjustments, and RS has recently gone bankrupt.