new member, looking at zero turn mowers, gravely, toro mx5050 vs toro mx 5060, hustle

i am trying to decide b/t a toro mx 5050, toro mx 5060, hustler raptor sd, exmark .....skag is too expensive for me. heard there is also wright zero turn. also saw a craftsman lawn tractor, the new one, but not sure craftsman is that reliable. i had a cub cadet lawn tractor, direct from cub cadet dealer, but died. so what is the best option for me, as far as reliability, easy to maneuver. i am a female, that will be mowing and taking care of the mower my self, except i will have it professionally serviced, but i will be cleaning, checking oil, etc. i known the new exmark 2015 will not have the kawasaki engines but one made in china as i have heard that toro will be doing the same thing next yr. i have researched them all, but the more i look the more i become confused. i know the toro m 5050 has the kohler and the 2014 mx 5060 has the kawasaki engine. hustler raptor has the kawaski engine. any suggestions? please. one dealer told me there is really no difference b/t them all, but i cant believe that. i know that i will be buying from a dealer b/c the ones sold at home depot/lowes are made mainly by mtd and not the same lines as sold by the dealers. thank you.