what are some of best tonearms you own or experience with.

I had a Mission 774 which was amazing with the matching 773 cartridge and other lightweight moving coils; I had a Hadcock /Coral 777 combination and then a Zeta Sumiko Blue Point Special which was superb and even better. I now have a Pink Triangle arm with a Koetsu Jade Platinum Diamond cantilever cartridge- unbelievable. For some reason I always remember arm and cartridge together as can be seen above.

sme 3012R

An oldy but never surpassed:  Syrinx PU-2 or PU-3.

Best Tonearm I own:
I love Kuzma 4P paired with Lyra Etna, Etna λ and Atlas λ. Super precise repeatable settings and ease of use. The Tonearm is built like tank.

Worst Tonearms I used to own:

VPI 3D 12” unipivot 
VPI 3D fatboy 12” Unipivot 
VPI 3D Fatboy 12” gimbal 
Reed 

Straightness issues, many loose parts, excessive play increased vibrations. Not reputable settings 

Reed 5A 

Average Tonearms that I used to own:

SME 309
More hours UP 4

really?  Reed had problems.  surprised.  can u describe them?