He man I get where you are coming from. Funny how people mention the bandit, park and catalyst as examples for what you might want as possible example of kites that have mid to high aspect. As an edge rider I find that amusing. I suppose it is all relative.
There may seem some contradiction in you are looking for an all round kite that has high aspect. Not sure that exists and if it did I would be one stoked mofo!!
The very best fair dinkum high aspect kite I have ever flown that rocks in the waves in the liquid force NRG. It is a true high aspect kite as opposed to some of the suggestions mentioned ( I ride a zephyr and the new catalyst to, so I have different aspect kites to consider) and yet its drift in the waves just left me scratching my head and my buddy who tried it (both of us 13 yrs into this sport).
But...not the best for looping, like an edge gotta get it right or you get spanked.
PERSONALLY I wish ozone would make smaller sized zephyrs, that seems for me the ideal aspect...for me anyhow. Love that zephyr!!
Also not the quickest turner so your hooked in freestyle moves can be limited. Also not the best to unhook unless you are an above average rider which we are not!
But it boosts very easily, lofty hang time, drifts like a demon and has some static grunt built in, which something like the edge lacks being soooo high aspect.
Give us all a picture of your normal session, board choice, way conditions and how you ride. Might help narrow down a suggestion for you.
Personally I wish ozone would make smaller sized 2013 zephyrs, the perfect aspect for me so far given its wing profile and camber shape. Love that new zephyr!!! Said this twice because I am hoping the universe is listening.