I only tanked as a Death Knight in recent years, so I'm honestly curious. When I play my Rogue I notice that Warrior, Monk, Paladin tanks etc. don't deal near as much damage as my Blood DK, and anytime my Rogue gets a Blood DK for his tank I notice his cleave damage is insane.
Also when I'm playing my Blood DK and my healer / group dies, I can usually keep myself alive for a long time on my Blood Death Knight through self heals (vamp blood + rune taps, death pact, lichborne, etc.). I notice for other tanking classes it seems like if their healer dies they drop really fast.
Just curious if DK is the easiest tanking class to play in general, or if they just excel at 5 mans?