I was just playing around in simcraft to have a look at bis gear and noticed even with bis gear crit only makes it to about 21% following the conventional haste>crit for frost.
I only started playing in 4.3 so I don't know how much gear goes up each patch but will we ever make it to 28%? if we will any guess as to how many patches away?
I haven't yet tried crit to 28%>haste for bis gear but I know it was pretty close in my current gear. I'll have a go at simming it sometime soon even though it means I have to manually reforge the gear.