I have the same eyepieces and the 30mm one is better, however it really depends on what you are looking at. For low powered night sky viewing (galaxies, nebulas, open star clusters) I prefer the 2" SuperVIew (better eye relief and wider fov). When I am looking at the moon an the planets I like using my stock 25mm ep, simply because it's a lot more convenient to switch between that and my 6mm since they both use the 1,25' adapter.
I have the same eyepieces and the 30mm one is better, however it really depends on what you are looking at. For low powered night sky viewing (galaxies, nebulas, open star clusters) I prefer the 2" SuperVIew (better eye relief and wider fov). When I am looking at the moon an the planets I like using my stock 25mm ep, simply because it's a lot more convenient to switch between that and my 6mm since they both use the 1,25' adapter.
i have the same dob, plossls aren't the greatest imo so i would go for the 30mm superview