Well, I hope I can provide you with an informative answer.
First, I'm sure you know that the current Star Eagles are all the Eagle-X mold.
I throw a firm Ascent. The Ascent took my 11X Eagle X out of my bag.
Both tend to fade pretty hard, and neither has a ton of glide.
I use this disc for forehand fairway flick duty. The Ascent is actually overstable compared to the
11X-X, which makes it better for high torque standstill shots that wont flip and roll.
I do still keep an 11X-L in the bag, but this is a much straighter flying disc, with alot of glide, not anything like the Ascent, or the Eagle X.
The Star Eagle will beat in much faster than the Ascent, and fly super straight after a while, the Ascent will take alot longer before it loses its turn and picks up some glide.
So, at least initially, you wont see alot of difference between the two. If you want the reliable predictable fade for a long time, the Ascent would be the better choice. If you want something that will beat in to fly straight, then get a little flippy, grab the Star Eagle.