A putter is ALWAYS a personal preference disc, the majority of players that try an Aviar will like it, but its certainly not for everyone. No one should say that any one putter is perfect, it may be for you, but its not going to be for everyone else.
I prefer a Champion Aviar P&A, but since its discontinued and the ones on EBay are running $25 it looks like I will have to switch soon. It has good grip in my hands and goes super straight with my style of putting. I will most likely be switching to a softer putter like a JK Aviar or a Wizard.
Magnet is my choice. I started with Aviar P&A but it was too rigid for me, then tried Soft Magnet which then again was too floppy. I changed in to regular Magnet and that was just perfect. I have since tried almost every putter in the market but nothing suits me better than a Magnet. I must say though that in my opinion the putter makes about 20 per cent of the putting. The rest comes from between your ears.