Regarding Michelin, I am not the type to buy stuff by brand name usually. However, I've bought several new Hondas over the past few years and they all came with Michelins that were super smooth and lasted a very long time. Because of that, I decided to try the Primacy on the 5 when it only had 95 miles on it. I hated the Toyos. Now I have a Mustang that came with Michelins as well. All I can say is that Michelins made me into a tire snob.
That said, every maker has cheaper, crappier tires. And, every vehicle will perform differently and eat tires differently. It's not all apples to apples when comparing a tire brand or model of tire. So far though, all of the Michelins I've had over the past 6-7 years have been amazing.
Tire Rack says the correct size is 205/50-17. The Michelin site says they don't come in that size, but do come in 215/50-17, so that would be what's on mine. I can't take a picture of it outside the garage, but I'll try to snap one tonight while it's in the garage. I do recall seeing my tires on mine after they were installed and thinking to myself how silly the car looked before. The OEM tires are just too small for the van body in my opinion.
*EDIT: I forgot to mention that I bought a set of Michelin LTX MS/2 on my old standard cab F150, and it went from a slipping, sliding POS to a road hugging beast. I paid almost $800 for the set, but there's no way I would take them off and go with something else after the transformation I saw. Keep in mind I've been slapping random brands on this truck since 1992 and 297,000 miles ago, so I definitely know the spectrum of performances to witness from that truck. The Michelins destroy everything else I've had on there, from Goodyear to Cooper to Falken, etc.