Aspect Ratio
Well simply put
Low Aspect Ratio => Greater Induced drag, higher stalling AOA and Attitude, Lesser lift increment for unit increase in AOA, Control issues at Higher AOAs.
Higher Aspect Ratios => Low Stalling AOAs and attitudes, lesser Induced drag because you are operating at a lower AOA for the same lift coefficient, Peak Lift is more and so is the stall more pronounced.
A detailed understanding is available in Aerodynamics for Naval Aviators a must read!! ask any military aviator