I tend to stand fairly close to the gate. With elite status and a good shot at being upgraded, it is a logical place to stand. Also, when I dlear the upgrade fairly late in the game (eg: right before boarding), I almost always get a bulkhead seat... and it is not fun if one has to put one's bags a couple rows back b/c the rest of the F pax boarded before oneself.
Even on RJ's, I tend to be the first in the boarding queue. This is so I can get on board and sit and relax (8c; exit-aisle) while the rest of the pax board. The practical side of boarding early is that in the past, DL has had a nasty habit of somehow managing to get 2 different pax boarding passes for the same seat. In these situations, I have found that the old adage is true... "Possession is 9/10 of the law". Incidentally, I have not seen the two-bp's, one seat problem for a while.