This isn't really much of a debate without giving an answer to what makes an Elite tribe, Elite.
Define that, and you'll probably come to realize, a true elite tribe will crush mass numbers of players any day of the week.
That said, there are factors to consider here if you want to debate the topic at all.
How long of a period are we talking about?
Is it a straight up clash of the two tribes, or the life of a world?
Are we considering this at early game, or late game?
Can you define a tribe at any one stage of the game as being elite, or do they need to live the life of a world?
The will to continue playing is what drives the success of a lot of tribes.
The reason mass recruit tribes get the reputation they have, is because they recruit everything, leaving little action, or fun for the tribe, members then get bored. They lose the will to continue on because what's the point, more barbs, more internals, they move on to new worlds to find some excitement, for what fun is a game without excitement? That leaves even more internals, more inactives, and sooner or later, if this tribe is ever hit, the tribe hitting them takes a pile of easy villages, giving the remaining players little hope, beause 70% of their tribe is inactive.
The 'Elite' tribes, I generally choke on the word, but the elite tribes have the same issues with will to play. They are generally more aggressive, war mongering folk, who do nothing but war. But in the end they drive their competition out rapidly, and they are left with the same issue, how do you keep your tribe excited to the point they don't lose the will to play. You start to noble large barbs from players you've driven to quit, and tons of inactive players in these mass recruit tribes, you then have to turn to your own internals as *real life* takes some of your members away, when in reality they've lost the will to continue on, will likely take a break for a couple of weeks, then join a new world.
Most premades die, because the excitement for many of these players is the early game, regardless of the fact there is little to do on an account, you have to be active, there's a lot of competition in the core, and it can show glimpses of where this game actually requires some skill, via backtiming, and manipulating the field around you for survival. Once you get to the 100-200 village mark, it starts to become a chore that quickly wears on these guys who thrive off the 1 on 1 fight, and being able to drive their opponent out of the game. Then they get to 300 to 400 villages, and quickly find reasons not to play.
So it brings us back to the question of
What is an elite tribe?
I don't know the state of many worlds out there, only having played for glimpses in Worlds 8, 14 & 19, so I can't say if there are any elite tribes out there.
However to me an elite tribe is one that screens their recruits, but not to find the best players in the game, but to find ones that have staying power and potential.
They take the time to teach their members the finer nuances of the game, and at the same time find ways to keep their members exited, motivated, and connected, so they'll not lose the will to continue on.
Inactivity is a cancer that quickly spreads, keep your players active, or eventually the tribe will die.
All tribes constantly need blood transfusions, as members will slowly disappear, few tribes that last a long time have the same members they started with. Even if you think your elite, know that your going to have to recruit, and if you snub everyone around you, good luck to you.
If a tribe isn't willing to put the effort into it's membership, then the effort will be reciprocated, and the tribe will fizzle fast.
I feel like I'm rambling....