Better count your beans again.  The Protestant Episcopal church in the USA has about half a million more adherents than Chicago Archdiocese.  One good reason to use another Eucharistic Prayer, like #2, is that it's shorter than #1!  Same applies to the homily/sermon!   One of our first American cardinals (O'Connell of Boston), present in coro at a parish Mass where the pastor was fadoodling with the new PA system,   inquired in his loudest liturgical baritone,of the pastor thus:  "Father, where's the button that makes it SHORTER"?