best advice here IMO is,
go to a good bow shop and look at Both scopes on a X bow like your getting and shoot them and see what one you like best, OR look at other options in scopes and mayeb find one you like better
they ALL work when matched to the correct X bow
larger dia tubes and objective len's, better quality glass , all get you better low light gathering and clearer viewing, and many will also net you wider field of view
BUT to be honest, again, its PERKS< , the plain jane basic scopes that come on them work for 90% of all hunters
the rest want better and Upgrade, just like they do on there rifles and so on!
spending money doesn;'t always get you better either, so keep that in mind, and also, spending more money for something your not going to really use, isn;t great spending either!