UA 1MM is similar to AA 2MM in that they both give lifetime mid-tier status.
AA is still easier to earn because all miles count.
UA's version gives more because they hand out some anual upgrade certs; AA only gives them as a one-time perk at each MM threashold.
Originally Posted by 777-DCA
Premier Executive status for life (and all of the benefits of being a 1P), and some upgrade certificates. If you do a quick search in the UA forum you will get all of the answers. The ones I said are the most important, in my opinion.