None of the information you give about your planned use case sets any limitation to a standard dynamical sports climbing rope. Also you won't notice small differences in the specs especially as it is your first rope to buy. Those different specs will only make a difference as you bring a rope to its limits. For example with routes where you have huge bolt distances and can expect high fall factors, a lower impact force will be nice, but in a typical sports climbing case this won't matter. So you can just go and get the one that is cheapest or you feel most comfortable with or whatthat has the nicest color or whatever criterion you want to choose.
For the dry option: this will only be of relevance if you plan to use the rope for glacier hiking and/or ice climbing where it is more or less sure the the rope will get wet. But in this case you will normallyusually get a rope on its own as normal sports climbing useuseage would quickly destroy the dry coating quickly. Therefore investing money in a dry coating that you (according to the information you gave) quite surely won't use will only make the salesman happy.