You thread title is considered a versus thread which is against the rules of this forum. I will have to close this, but if you have a specific question on the SLG only, please feel free to start a new thread.
Everyone has their own personal preference and often these threads turn into flame wars because people take these kinds of decisions very seriously. Start by checking out the reviews
on the guns you are interested in that are within your price range.
If there are no reviews out yet because the item has not been released or has not caught on, give it time. Once other users have them in their hands, we'll start getting feedback here on the site. If you want to be the first person to own one, then you are taking a risk no matter what it is. Badgering the manufacturer is not allowed and it won't give you the unbiased answers you crave anyway. They are after all trying to get you to buy something.
If you still want people's opinions about how one marker stacks up against another, post in the Endall Best Marker Sticky