1.) Haven - requires map rotation discipline
2.) Ascent - requires team ability to split map during takes
3.) Breeze - requires aim
4.) Split - requires mid control
5.) Bind - requires post plant discipline
Is there really any argument?
Split can actually be a complex and interesting map, but the problem is people play so one-dimensionally in ranked "push a" or "push mid" or "push b" when the map requires so much more than that. That's why so many underrate it. I think Haven is still far and away the best map because of how dynamic it is and how many staging grounds there are. There is room for so much tactics. Ascent is underrated by so many for some reason when there's so much room for teamplay. Icebox is unique in how vertical it can get. Breeze is similar to Ascent, just larger and has halls. Bind has become partially one-dimensional and has the least amount of growth in terms of strategies. Fracture is unique because of all the orbs and angles of attack. That's why I think most of the maps are close in terms of how good they are.
TL;DR
1) Haven
2) Breeze
3) Ascent
4) Split
5) Icebox
6) Fracture
7) Bind
S Tier: Haven
A Tier: Breeze, Ascent, Split, Icebox, Fracture
B Tier: Bind
1.) Haven (best flow)
2.) Breeze (best design + aim battles)
3.) Split (pretty balanced if you take mid control on attack)
4.) Fracture (makes for fun games sometimes)
5.) Bind (fun retakes but a bad map design because there is no mid)
6.) Ascent (yes this low cuz this map is so boring now and all the walls are paper)
7.) Icebox (i think this map just has the worst flow to it, feel claustrophobic when i play it)
All Valorant maps are pretty bad IMO, but without much thought: