Just keep in mind that both yeti and engle "model" numbers do not mean that that is the size in quarts. Haven't done the math in a while, but both of the 120-125 coolers are significantly smaller than the "model" number. Like around 100-105 actual quarts. Multiply the w, l, and d and divide by 57 cubic inches and that is the real size.
The Igloo Yukon cooler are really close to what they say. 150 is actually 148 qt.. Check out Walmart online. A buzzard posted on here at some point a link to a 120 qt. Yukon cooler for around $300 IIRC.
We have a Yukon 150 and I think it's every bit as good as the Yeti et al. Heavy rotomolded construction, good seals and insulation. The drain plugs actually drain 99.5% of the water out. Now, the molded on handles aren't the greatest design feature, but we can live with it. We strap it to the frame by the handles and avoid having straps over the top except in big rapid situations.
On a GC trip last April. Door to door, 23 days and we still had about a lg. dinner plate size piece of ice when we got home. Not a summer trip, but I was still impressed. We were throwing beers in there by day 14 and exactly exhibiting good cooler management by that point either.