All churches ACCEPT tithes and donations, but only Mormonism makes it MANDATORY and investigates you for compliance and issues you an ID card for it, and refuses you entrance to the Temple if you don’t comply, and who’s theology makes you second class, or even third class in the after life.
Not paying at least the required 10% means that you cannot become a God, in Mormonism.
I also see your point of view, if i decided to join a tithe collecting church i suppose i would pick the one that i thought was the lesser evil which would not be the Mormon church.
That also goes with picking a president, i would pick Romney over Obama even if i thought Romney was some what evil, but i have known many Mormons who i thought were great people.
My point is that Mormonism is the only one that requires you to tithe, questions you on it, can require proof of it, issues you an ID verifying it, and denies you part of the afterlife if you do not pay, and denies you entrance into the Temple for failure to pay.
That is nice that you have met nice Mormons, my Mormon friends are nice also.
Mitt expects to become a God as our God is, and paying at least 10% of his income is required for that to happen.