4 pallys 1 druid

[nodoze]

The thing is that the holy palys would stay in the back to cast their heals, right? I mean, it wouldn't make much sense that they follow the warriors into melee range.
I'm not sure how good a team that is split in two groups, the backline healers and the warriors in the front, can be controlled in PvP.
Smart opponents will either ignore the warriors and slaughter the backline healers or they chain CC the holy palys with aoe fear and kill the warrs in mean time.
Is Intervene available in Classic? I guess that ability would be important so when the opponents decide to go for the backline healers the warrs are able to intervene back to their healers to protect them.

If you are facing a group then likely you should be in a group as well. It may well be hard to ignore 3 Warriors with +60% move speed who are immune to CC and Focusing on Targets. Paladins would be on the far side of the Warriors so you would have to get past the Warriors first. If you get past them the Warriors have intercept/charge, stuns and hamstrings and the 3 Warriors can take turns chaining them on you.

Even if you get to the Paladins, in Classic Paladins are pretty hardy in plate and shield and between divine-shield/divine-protection/BlessingOfProtection/LayOnHands you essentially have to kill them 2 or 3 times while you are "ignoring the warriors"... Remember also that there are two Paladins who can cleanse/heal each other they can take turns chaining their bubbles and the one protected can cleanse/heal the other non-protected one and vice-versa... They are hard to kill to begin with and very hard if the have a dedicated healer...

Not saying it is insurmountable by any means but I think you are giving the team composition short shrift... A single Warrior with a single Paladin is one of the strongest duos in Classic WoW & 3+2 is only stronger.