Gokey..
Okay, these two, allen and lambert are rockers, they both did great in motown etc, but i think Gokey has a better carreer path if he choses the music industry as his foodbowl because, beacause solo rock carrers don't always turn out the best, like bands when they broke up, somewent solo but could never achieve ultimate victory especially glam rockers like billy idol after awhile the fad tides down and he slowly does not create songs with that much IMPACT.
Gokey on the otherhand may not rock out as well as the other two, but his voice is amazing great for ballads etc, these kind of songs after attaining media success, will become a classic, who can forget every rose has its thorn? Or even a person with a non rocking persona like lionel richie(As seen on American Idol) still can be remembered by rockers and non rockers alike.
If you ask someone of the different trade like RnB/HipHop to listen to Purple Haze compared to Hello, I bet they would choose Hello(LR's Song) over purple haze.. though this may seem unfair, but this is how cruel the music industry is, if you don't perform well, bye bye, your out of a job.
Unless these people can make classics that can stand the discrimination of music over time, the success will be theirs
(Advance apologies if i have offended you by anymeans of my views, I am not sparking a war here just stating my opinions)