The HA Borosilicate is too expensive, and not the best tool for your particular job. It really functions best in a two rod "system. If you want to go to those lengths, you're nuts.
The F. Dick oval is also very expensive, extremely tricky, and also probably not a good choice. The oval works differently depending on which part you use; and the grooves can either be aggressive or relatively fine depending on how you hold the rod, the knife, and the amount of pressure you use. F. Dick says it's their best rod, and a lot of chefs with too much money like to use them -- almost always improperly and to poor effect.
Don't steel like Gordon Ramsay.
The Idahone fine ceramic is probably your best choice. It's reasonably priced, very well made, has an appropriate surface, etc. The only drawback is that it's slightly fragile. Drop it, and you'll need a new one.
Another very good ceramic, nearly unbreakable, but otherwise not as nice as the Idahone, and somewhat more expensive is the DMT CS2 (ceramic, NOT diamond). In the past, they've come from the factory with some ceramic spatter on the rod, which must be sanded off. Not that big a deal, but you'd think they'd get it together.
The MAC ceramic is even less breakable than the DMT, but rather expensive and not as nice.
If you absolutely, positively must get a steel rod (you've indicated that it doesn't matter to you), Forschner makes a fine which is good. The F. Dick "Dickoron" combination rod (fine/polished) is quite nice, but very expensive. Dickorons are as good as any metal rod on the planet, IMO. But... not worth the dough.
I use a very old Henckels which started as a "fine," and has worn down still finer, along with an HA Borosilicate. In other words, that nutz-o two rod system. It gives me a few tricks I wouldn't have with just an Idahone fine, but not many. Unless you care more about fooling around than simply doing a more than adequate job, stick with the Idahone.
If the longest knives you'll be steeling are 9" or longer, get a 12" rod. 8" or shorter, you can live with a 10".
When you have a chance, take a look at this.
Hope this helps,