Just like all others said, you need to look at Features, Functionality & Algorithms because everyone is making a good quality product so these categories will be the difference makers.
If you like the way your computer (Genesis React Pros) has preformed from an Algorithm stand point, then I would look at the Oceanic computers. Oceanic owns Pelagic who makes these computers (Oceanic, Aries, Sherwood, Genesis). From what I have seen, the Oceanic version of these generally has the easier reading #'s and is usually launched first. If you go with a Suunto, Uwatec or DiveRite computer, then they will be more conservative then what you are use to. Which means that it will put you into Deco faster, take away from bottom time (keeping within NDL's) or keep you in the water (Deco) longer than what you need to.