In despite of the poll results, you guys should check your server stats to see what are the most frequently downloaded packages with EasyApache. Probably a poll is a good idea to take the pulse and opinion, but it still have not enough votes to take a corporate decision

. Also, take in account that, i.e., I found this thread fortuitously and I can see that nobody answered to it in more than 10 days...
For a serious approach,
IMHO, I would take the download data of the several available versions of Apache by EasyApache for the last 12 months and load those totals in a pretty Excel graph to see if there is a real tendence to abandon Apache 1.3 and 2.0, because you cannot be absolutely aware of what other users are doing. At the same time, you may place a note in the EasyApache screen at WHM to let admins know about future plans to abandon Apache 1.3 and 2.0. In the best scenario, I would support those versions until Apache 2.4 is finally released and checked as stable in cPanel changelog.
Personally, I switched to 2.2 almost as soon as it was available on EasyApache, and I'm considering abandon support for PHP 4 in our server for 2012.