Tube integrated amp recommendations

Now that I have my second system up and running, I'm thinking of getting an all tube integrated for the system. I've been solid state for most (if not all) my audiophile life. I had a tube-preamp with a class D a few years ago but didn't care for it and I sold it off and continued on with my SS reference system. So now I want to try an all tube integrated with my Tekton Lore Reference speakers (96db efficient) and I'm trying to do some research. I know there're a ton of tube folks on here, so you're recommendations would be greatly appreciated. I would like a headphone jack but not a deal breaker. Will be used for streaming/CD. This is what I'm considering so far (budget $3-5k):

1. Audio Research I50 (new release)

2. Luxman Neoclassico SQ-N150 

3. Raven Blackhawk MKiii

4. Conrad Johnson CAV45

Thanks so much!