Abovenet vs UUnet

So here is the deal, I've delt with both uunet and abovenet (mfn now) in the past. And a long time ago i switched from abovenet to uunet when i was with a different company. Now i'm with a company that has level 3 and Abovenet. Currently the way the pricing is layed out is by staying with abovenet i'll save about $1300 over UUnet. Money isn't too much of a concern currently abovenet is much higher but we are at the time were we need to renew our contract and we got it with a lower price. So which way? Abovenet or UUnet.. what are the pros and cons that you've experienced and what kind of latency do you have over the providers. I appreciate your feedback. Thanks Andrew