Reputation Gains when Leveling in Dungeons

[Apatheist]

Is there an elite grinding route/guide out there for Classic? I recall looking for this awhile back to supplement group leveling but didn't find much.

Not really. I just go wherever drops the best loot and is an appropriate level for my characters.

I only bother collecting quests for a dungeon if it rewards an item I want or if the quest is easy to get. A lot of them have huge quest chains that involve running around to multiple continents and then running/flying back to the quest giver again to turn the quest in. It's just not worth the time. If it takes you half an hour to run somewhere and get a quest, you could have grinded mobs for another 30 minutes and earned more XP anyway.

It's a very good idea to have a look at preraid BiS lists before you start grinding so you have an idea where you want to go at what level. For warriors, there are some items that are BiS from 40-50 dungeons like Thrash Blade and Blackstone Ring from Maraudon or Ironfoe and Hand of Justice from the emperor in BRD. Since you'll want these items anyway, you might as well start farming them while you're gaining XP and kill two birds with one stone.

https://vanilla-wow.fandom.com/wiki/Instances_by_level