OK, here's my vote -
I have a 5 gallon ORANGE Igloo cooler with a More Beer false bottom. I bought the false bottom as a part of their extra cheap "John Pliese" designed bucket mash tun. I had an extra bucket spigot so I bought the cooler at Wal-Mart and reamed out the spigot opening so the valve from More Beer would fit the cooler opening, then made the bucket into a bottling bucket.
Now, if I want to brew a higher gravity beer, I calculate my water aditions to do a decoction mash as so not to overflow my mash tun. A two step Hockhutz decoction has worked wonderfully for me (if you do not know what I'm talking about then check out Kai's website or buy Brewing Better Beer by Gordon Strong). True, it doubles the time of my brewday, but my beers have become exponetialy better!
And, everyone knows the ORANGE coolers are better!
...blood...
Alan