I guess this is true in OU. I don't know, I haven't been on the OU ladder much in a while, though that will change. In Ubers, here's what I've came across:
Below 1000: The guys who think FEAR is hot shit and embarass themselves. And the guys who use Roar of Time on Dialga.
1000-1300: Random crap thrown together with little synergy, like Lugia and Tyranitar. The actual sets are copied from smogon.
1300-1400: Generic Kyogre/Palkia/Rayquaza teams, guys who still haven't discovered themselves as Ubers players.
1400-1525: People know what they're doing, can make teams, can think coherently.
1525-1650: People are solid players, can compensate for team disadvantage, can incorporate long-term thinking into dueling, have well optimized teams that suit their playstyle, etc. I unfortunately have not progressed beyond this category, mainly because of...
1650+: Theorymon, Train Man, Gen Emp, etc. The stars of numerous warstories. The innovators of Ubers who have incredibly fine-tuned teams. The guys who end my ladder runs when I get to around ~1600/1620.
In OU, I've seen things like Flygon and Skarmory together on 1400+ teams, and I almost asked the guy: how the hell did you get that far with that thing? I never had the patience to ladder much, mainly because of the slow pace of OU laddering.
how high up someone gets increases porportionally with how much time someone puts into something. and I am disappointed i wasnt mentioned in that all star cast of yours.
that ranking system is so wrong, a below 1000 player could just be starting out
hell, half the uber ladder is alts, so a high class player that just starts out immediately goes under the Roar of Time fans?
a 1400 rating doesnt mean that someone only uses generic stuff, more often than not it means that they havent put into as much time as the 1650+ high flyers
as a side note, Lugia and Tyranitar isnt a combination that has no synergy to speak of, its jsut two things that happen to be on the same team.
Not many things stop a Tyranitar besides Groudon, so it is only natural to pack a Lugia to answer to Groudons
what about a Kyogre and a Mewtwo? where the synergy there? the rain helps out Mewtwo's HP Waters?
also, a 1650+ in ubers is like a 1500 in ou play just because the Uber leaderboard is so easy comparatively
EDIT: if JLei2k or w/e thinks a 1500 is average, who am i to argue?
a 1650 would then correspond to a 1550, but you get the picture, its very hard to compare the 2 ladders(and uu), because it is quite obvious a 1650 in ubers doesnt come close to being equal to a 1650 in ou
in ou it is very hard to have every threat accounted for
in ubers a great team and experience can take you much further than the same amount of experience with a reasonably good team can in ou
as to the topic at hand, a great team with experience using that team will beat skill
the only time skill comes into question is when the two teams are evenly matched, not that: "the other guy is more skilled than me, but even if i sack my Breloom I still have more ways around his Swampert because my team is well constructed to take out bulky fools like Swampert" or, "i can stay in with his gyarados since if it gets a dragon dance, my team can still beat it with a scarfer or a combination of intimidate +resistance"
but if your team isnt well built to handle things like Gyarados, no amount of great skill will dig you out of a Gyarados dragon dancing on a Scizor locked into pursuit or something