I think both the BX and JD2210 should have both the tach and temp guage. FWIW, the 2210 makes its rated engine speed below WOT, and I assume that would be the case for the BX. If I liked one tractor over the other, I wouldn't let that (either shortcoming) dissuade me from my primary preference.
There are differences in the 3-point hitch that are notable. The 2210 Cat 1 limitation is only from its ability to lift an implement to a specified height, and from the weight limitations. Both just a smidge above the BX, The shortfall in this category on the BX is the spread width on the lift arms, and the difference is enough to limit the sources for some implements. I know there are enough resources identified here at TBN that this may not be much of a concern either.
Another FWIW, I can't wait to trade in my 2210 in five or six years for something bigger or better, so I won't be able to report back on the hypothesis that the plastic will fade or degrade /forums/images/graemlins/wink.gif