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

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?

What’s wrong with the fatboy?  I have the unipivot w dual pivot attachment and I don’t find any issue with it.

+2 on the Graham 2.2 which I still own and use. I also own and like SME and Rega arms.

I used to own a Morch DP-6 on a Verdier turntable and found that to also be a good arm for the money.