How to deal with DM favoritism? [duplicate]

I've been playing a 4e dungeons and dragons campaign for a while now, and it's the first campaign I've ever played in. The DM seems to keep pampering one player in particular. He usually only gives plot hooks to that player, never blames that player for anything, gives that player any and all magical items he wants, and let that player start out the game with a feat that allows him to take two standard actions per turn without spending an action point. The player claims that us other players are just bad at the game, even though his character sheet has multiple very clear errors. The thing is, this player is the only reason that we can win any battles since he's a higher level than any of us and the DM scales bosses to him. The DM has recently started giving plot hooks to other players, but the only time this has happened was when he gave my character a single hook one session ago. I'm sorry for ranting, I would just like to know how to deal with this.

• Do you all use DDI to build your character sheets? What level is the party? Do you know what the purported feat name is? Mar 16, 2015 at 4:22
• The feat doesn't have a name, it was homebrewed. We all used DDI. We're all around mid-level 5, though the player is almost level 7. Mar 16, 2015 at 4:25
• Does the GM (wish to) have a special relationship with the player in question (eg., boy/girl-friend, spouse, sibling, best friends from way back, ...)? That might color the answers you'll get. (edit: not that those statuses are excuses, of course) Mar 16, 2015 at 5:07
• @minnmass Those statuses aren't excuses for favoritism but the only acceptable reasons for favoritism. :-) Mar 16, 2015 at 10:19