It seems that you are looking for a response related to the best video resolution.
There are some things you must take into account. First, either using the SlingPlayer software or the web-based application through www.slingbox.com. Whatever your choice is, you must know that we no longer support the SlingPlayer software version (for Windows or Mac), although there are some users that prefer this software version.
On the other hand, we recommend you to use the web-based application through www.slingbox.com, since it will allow you to take advantage of the new included features.
No matter which option you select, the most important things to check are related to the networks you will use (at Slingbox location and any remote location). There are some requirements that must be met in order to get a good connection to your Slingbox which will bring you the best video resolution. In all case, I recommend you to check the following links in order to get all the information that might help you to make your decision.
Hope this helps.