Reaper made Necro go from worst to first. It constantly wins reddit polls about what is the best or what are you most excited for. Brutal DPS, high HP, boon strip/corruption, and vulnerability stacking. Reaper was clearly made for raids. Even in full zerk, it can drop 15 stacks of vuln on anything. Reaper can still use the zerker meta, but will be better off suited with Valkyrie.
I really need to power through WC with my Ranger. Druid is almost a tie for me with Reaper. The community is 50/50 on it only because it wasn't what they expected and half of them are salty about it. Druid is an amazing spec. Staff is a monster utility weapon... its probably the best utility weapon in the game. Being able to turn enemy projectiles into healing is outstanding and Ancestral Grace is a crazy mix of quick escape, gap closer, and quick save. Vine Surge could use a reduced cast time and I'd argue that Solar Beam should hit 5 targets like most other staff AAs, but other than that its a perfect complementary weapon to Longbow's raw DPS. Glyph of Tides is my favorite utility skill as it provides a 360 knock back. It has great synergy with the grandmaster trait Ancient Seeds that entangles foes when they are dazed, stunned, or knocked down. This also gives legit reason to use Point Blank Shot. Natural Stride is really OP, but I rather have the condition reduction nerfed than the maxed baseline speed. The +33% movement speed is the game cap. All swiftness is pointless because you are already going as fast as the game allows. This frees up utility slots that would be used by Signet of the Hunt and Quickening Zephyr and allows you to use Lightning Reflexes as your stunbreak and 3rd dodge. Druid surpasses Thief in mobility with the right build. All the new pets are amazing too... so amazing that all the old pets are garbage... they really need to rework the old pets to get them up to par... but the best news is that bear is def no longer the best. Smokescalebows FTW!. Now that there are pets that do some legit damage, I find myself commanding them more to retreat and attack... the older pets really didn't do much so I let them do their own thing for the most part only hitting F2 on CD.