I am talking 2d. di, and si images on the screen. Not maps, GPS, Processor speed etc.
I have been using an A98 Raymarine and like it. I mainly use the split screen 2d/di. Both are very good and I know and trust what i'm lookin at. Di is best I have seen for showing fish. Structure and bottom are kinda blurry tho. I have the Si add on and it is just OK and blurry like the di.
From what I have seen here, the Axiom images are not much better than the A98. I have no Axiom experience and could be wrong.
I just got a Helix Mega and am still playin with settings. First impression is the Si is pretty impressive. Much better than any other brand I have seen. Di is very good but does not show fish as well as the Ray. 2d with the HB is not great but I have a lot of setting adjustments to play with to improve it.