Well as i've read so far, lots of people saying N/Rt would be a better combo than Rt/* because the base skill of Rits is bad? I'ven ot played the game for a long time, and dont actually remmember what their base skill was, but i've been thinking about it.
Splinter weapon and so on were my initial plans, as long as we can manage to do pretty much anything we set our minds to in PvE i'd be quite happy picking Rit, i think they look awesome too.
Presuming i do choose Rit and level with him, obviously i'd be playing the support role - what heroes would be advisable? On my Ranger i've simply ran the triple necro setup, and it is pretty sick in how good it is!
Same applies for us in this case, or do things change?
Sorry to sound like a noob!
It's PvE.
For starters this means that bad choices won't make you fail.
On top of it - you'll be playing with a friend - which further reduces the chance of failure.
And because of that - when choosing a class - you pretty much just decide if you want to run support or damage - and then go with what has the prettiest armour.

Soul Reaping is godly - but if you run a Assassin's Promise ritualist - you get the same effect.
So if you really want to try out the ritualist - I seriously suggest going for it. It's my absolutely favorite class - and I play with heroes or one guildy and the guy works perfectly.
I normally run the 3 necros (Discord-way because that gives me something to play around with) - because of the stupidity of the AI. Running a necro hero means that the guys do not need to manage their energy and are free to spam their skills. And that's just perfect for their level of brilliance. Or the lack of.
So - once again - go for the ritualist.
They are sweet!