Cougar, Buffalo, and RG-31 has been pretty promising as it proved its survivability in Iraq. GPV Commander is attractive for its ability, but rather a candidate of FTTS/FCS/APC for its size, replacing Stryker instead of Hummer. I rather see Buffalo as an APC rather than a multi-purpose vehicle. I would recommend ASV-150 Guardian as the best candidate. While it is several times more expensive than UAH, it costs less than Stryker, and is a four wheeled vehicle. It also has a turret on top which could install grenade launcher systems, and also automated gun system. The use of turret is a big advantage when considering threats from above, IED, and snipers as well. ASV-150 also has three levels of armor, which will allow ASV-150 to be used in non-combat missions without carrying extra weight of armor. While the cost may be concerning, its feature and price below Stryker will still allow mass production at affordinble price. LAV-150 also has a history used by foreign countries (ASV-150 is also used by ISF in Iraq), and could be something worth for exports, which will allow a cost down, improving its cost performance. However, Textron has been suffering damage from Hurrican Katrina. Let's hope they will get into the race replacing Hummers.
Armored Security Vehicle 131 is a premier platform that is being used for convoy and route security in Iraq. The ASV employs the MK-19 grenade machine gun (turret mounted), M-2 .50-caliber machine gun (turret mounted), and the M-249 5.56mm Squad Automatic Weapon. ASV 131 arrived in Iraq in late June.
Armored Security Vehicle is highly-mobile and C-130 Aircraft transportable. The vehicle's armor is capable of resisting .50 caliber armor piercing rounds and has the capability to deflect up to a 12-pound mine blast. This particular M1117 blew an o-ring in the wheel solenoid and was repaired at Camp Liberty, Iraq, April 5, 2005.