Simon Cowell and L.A. Reid are in a battle of egos over the size of their “X Factor” dressing rooms. Simon has insisted he wants two trailers on the show lot, including one for his guests. Reid, who recently joked to Epic staff he doesn’t want any “ugly” people on the team, wants a trailer big enough to hold meetings with artists he’s working with at the label, while he also mentors contestants each week. A show insider told us, “Reid has ordered 6-foot speakers and even an area to store wine. But Simon wants nine TVs and his trailer to be surrounded by plants and palms, so it feels like he’s in a garden. He has also asked for a jacuzzi with a TV in the bathroom, where he relaxes before each live show.” Cowell is known to relax in a bubble bath while penning his producer’s notes for the program. A source said, “Simon is the boss, so he’ll get what he wants, but L.A. has strong opinions about what he is used to. Nicole [Scherzinger] and Paula [Abdul] are joking that the guys are the real divas.”