If you can afford it, take a town car or just walk up and grab a taxi. The taxi line @ MCO has never been that long for me; < 5 min. Typically a cab to Universal will be $45. Town cars can be had for around $50 if you call around for prices. Mears will toss you into a van with 8-10 other passengers. If you're unlucky enough to get a bunch of different couples, you can bet you'll be the last one dropped off. Not worth it to waste 90 min in a hot van.