ah but see thats the fun part about league and dota and hon there are so many champions so many different ways to build one so many different play styles that its random having say 20 champions and 20 items means that only a certain amount of builds will work and a certain amount of play styles based on the team composition
but take say league with its 110 champions 150ish items which means to countless play styles
eg with the new champion thresh they recommend him to build ability power(magic) items but it makes him virtually useless even if you change out his ap recommended with your own ap build but you go for say attack damage and life steal with a bit of attack speed and suddenly he is a whole new beast.
sure its hard for people to learn what every new champion does but thats the fun part exploring the ever changing play style as what might work now might not work in 2 weeks(and infact in 2 weeks a few new items will be added) so who knows maybe in a few weeks suddenly he is better of building ability power items again who knows
id rather have 110 champions then say 20 as it makes for a lot more interesting team compositions and matches as say in smite you have what? 20 odd champions atm that means on a team of 5vs5 10 of them will be taken at any given time leaving people that play with friends to pick champions they like the most and work the best with their friends their play style and not often trying something new out as others wont do the same
now in league you tend to see an adc and support on bottom lane with a mage/apc in mid and a wild card champion on top now earlier today i saw a support on top an adc mid and the apc and wild card champion where bottom and they where doing dam good
i honestly doubt that if a support champion was picked in say smite or dota that he or she would do well against a champion that is meant to solo the lane
yet what the support champion did in this game was take what normally would be a champion that you build ability power on and build attack speed and damage on her and you just sat there and laughed as the banana's where being thrown all over the place
so to be honest id rather have 100+ champions then say 20 and rather have way to many items that are diverse then say 20-50 for the simple fact that it can spice things up quite a lot and will make things a lot more fun as who does not want to take a unicorn that throws banana's and normally always gets picked on for being useless and turn her into an unstoppable killing machine by doing something that you normally dont do?