I have an aerotank and it's really good! I will be ordering the Nautilus Aspire soon as I've heard nothing but good things. Also I've got the iClear 30b which is great but no adjustable airflow which I've come to love (but it isn't really a necessity).
I am also going to order the new iClear X1 because it looks awesome and is glass
My Aspire Nautilus and Kayfun lite are my favorite tanks. With the pro tank 2 next. With the Aspire Nautilus you get total air flow control. But the pre made coils are hit and miss. So I build my own.