I agree with a previous poster. If you don't like the archetype, stop complaining and go play something else that you will enjoy. That's what everyone does in life, tackle things where they can be productive. Now, if you want a challenge, then by all means, go for it, but don't use an archetype and then turn around after watching someone else do something, and say that you want to be just as effective. Things don't work that way.
I don't think there is favortism as well. It might be that some things are harder to correct than others. Either way, complaining does nothing, but eventually comes back to bite EVERYONE in the [censored], as it did with I6. You want balance? Someone gets gimped. Then they complain, and the cycle repeats itself.
I myself am partial to scrappers. I used to love playing a blaster, but found out I could take on groups of no more than 5 even cons. Orange lieutenants could easily kill me, and reds were big no-nos. It was a crawl. But I am enjoying the scrapper archetype.
I remember pre I6, where tankers would herd and fire tankers would kill +4 and +5 bosses without a sweat. I didn't think a darn thing, only cool, they'd be awesome to team up with. I thought they were overpowered, but my thought was, "Hey, maybe I should make one of 'em up."
It's funny actually. I could understand it if everyone only had one hero. Your complaints would then be legitimate. However, my response is, if you have ample time to complain about others, use that time to go a create another hero, and use it's advantages for yourself.