Hi yorkiedaddy17.
Big stroller fan here; invested in two strollers (both by PetGear) say 15 years ago.
The strollers with three large wheels seem to have the best maneuverability (by far). See comment by pstinard,
above, about inflatable tires. The tires on mine are not inflatable.
While my strollers have zippered closures, many newer models feature clips or other mechanisms that don't involve a zipper. While my zippers are still in good shape, they are a hassle to get started (have been since day one). The no-zip feature will only be a consideration if you actually close up the stroller frequently.