Graham 2.2 or SME 309/IV/V

I also have a VPI HW19 MK 3, and it has served me very well for a long time. Years back, it was mounted with the SME V tonearm, which I also greatly enjoyed. After wanderlust led me to try several other highly regarded arms, I returned to an SME, but this time it was the IV.Vi, which I've since lived with and never had a desire to stray from. Soundwise, I believe it is slightly better balanced than the V from top to bottom. This might have something to do with its different internal wiring compared with the V. Nevertheless, I consider both SMEs to be extremely satisfying. I've never tried any of the Graham arms, so I can't comment on them. I too am using a Dynavector cartridge---the XV-1S. It seems to form a solid synergy with the SME/VPI combo.

The 2.2 uses the SME cut out, I just bought one and it arrived today and I was reading the manual. I use to use the SME IV but have not set up the Graham so can't comment on sound. It also has the SME screw adjustment in which the arm moves to align the cartridge, a real boon to those of us whose eyesight and hand steadiness are not what they were.

When Graham changed to the model 2.0 the standard arm mount changed from the sliding SME style to a (more rigid) round style mount with 3 fixing screws. I believe the SME mount was only special order from that point. Make sure to check with the seller to ensure what you're getting. Most 2.2 arms would have the standard Graham round mount - which is said to sound better.
(Note, Phantom arms are optionally supplied with a more rigid simplified SME type base than the 1.5/2.0 version.)

I originally had an SME V on my TNT (series 1) but changed to the Graham 1.5T which sounded much better IMO on that table. I've found Graham arms to be more precisely adjustable than the SME V. The latter is not really for people who like to adjust VTA for different record thicknesses etc, no azimuth adjustment either. SME's are fine arms of course, just not for the tweaker who wants to exploit maximum cartridge performance IMO.

Mine is one upgraded from a 1.5, has both 1.5 and 2.2 decals, I'd give up a little rigidity for the sliding base. I also had a TNT series one when I had the IV.