I think one of the main failings of the LFR is that your odds of getting better gear don't improve over time, like they do with a closed raiding group. The random loot drop/token system is fine when the same 10/25 people are gearing up. But the odds on LFR are exactly the same week after week after week.
Why don't they just make it so you can't roll on gear that's below what you're wearing? I'm sick of people in VP gear rolling on LFR tokens "because they can". Seems like an easy and obvious fix.