SPU cartridges - opinions?

I've decided to add some additional vintage gear, and just received a fully restored Garrard 301 oil bearing motor. I've done the usual Internet searching on logical tonearm and cartridge pairings for the 'table, and Ortofon SPU carts get mentioned very frequently. I've exchanged some e-mails with a handful of experienced people, but I wanted to reach out to a broader audience of SPU users to get more opinions.

There are so many SPU variants it's bewildering to me. I believe I'm going to go for a G-type headshell, so that narrows it down a bit. But what are some thoughts about spherical versus elliptical styli, the performance of "Classic" models (like the GM) versus "Anniversary" models, etc.? Any insights would be greatly appreciated!