Then you must have been playing with scrubs, when im in a party with my guildies there is just no way to top the meters, not even as frost. It might happen when all the stars align and everything crits, but those are far and wide apart. There is just no real way to win with damage done to a single target from any melee that knows how to play.
All specs are shit atm, fire needs more crit, but it has always been like that, a crit dependent spec. Arcane dmg is better but still sub par to anything but a healers dps, and frost doesn't do that much more either, and if you have a procless-streak and just cast frostbolt your dmg will be bad at best.