Unfortunately for your case though, if the majority of Confederate arrests were for a minor, non-political, and legitimate reason of selling alcohol to troops on military grounds, that puts Lincoln's arrests, which WERE often political, at a severe disadvantage.
The numbers themselves are not the deciding issue until what they represent become known.
However, though Davis did not use the Writ as often as Lincoln, it does not mean he did not want to, or in fact, should have been restricted from doing so.
The fact is that suspension of the Writ is a necessity in times of war.
And Lincoln may have been in most cases justified in using it.