I buy it, I listen to it, but you get to choose it! What is it..?

...why it's a cartridge, of course. And the same old boring ones at that (sorry). Since I don't have the money right now to make a mistake I need to tap this forum's broad experience and sage advice - and hot air :-)

The system: LP12, uncirked, Akito 2, aging K18II, 102 psc hicap, 250, Spendor SP1/2.

I really want to try an MC and I have both K and E boards sitting around. My concern is with the Akito 2 and the Spendors. Of the carts listed below which do you all think will work best mechanically (or not work or work splendidly) with the Akito and what will sound best with the Spendors (i.e. they're a bit, soft, reticent and dimensionally flat). Also, I have to use the K boards (or E) that I have. I certainly don't want to buy new S boards.

Here's my list. AT-OC9, Ortofon MC25FL, Denon 304, Dynavector 10X4Gold special low output version.

I know that a used Ittok would be better, and an Ekos or Aro better still, and that the 82 smokes the 102, and maybe a rebuilt,,, but that will all have to wait. So this is more of a poll. If I get enough replies to make a valid sampling, I'm buying the cart with the most recommendations. BTW, personally I'm leaning toward the OC9.

Thanks