Price
The US price for the Pilot CH 92 is $240 vs $65 for the TWSBI ALR. Yes, there’s a gold nib on that Pilot, but for reasons unknown to me, the clear CH 92 has always had a premium compared to the other colors of the CH 92, which aren’t readily available in the US market. This pen can be found for 100-120 shipped from Japan and this is one of those times when the price difference is so big that it’s hard to justify the higher US price tag. If I had to pay $240 for the Pilot CH 92, the reality is, I probably wouldn’t own one. The TWSBI 580 ALR at 65 is a good price for a workhorse of a pen (just don’t do stuff like store it with your keys, bang it around in a backpack or crank on the cap or grip or piston knobs.) However, if you’re able to get the Pilot for $100 or even $150, it would be Pilot, hands down because I like the nib so much more, but if you can’t, then it’d have to be the TWSBI.
Winner - It’s complicated.
In the end, there were a lot of ties and some complicated answers with respect to pricing, as well as personal pen preferences. While they may look similar and share some similar qualities (piston fillers, demonstrators, not too heavy or girthy,) they don’t write similarly enough for me to hands-down pick just one of them. I love my TWSBIs for everyday writing and there is almost always one (or more) inked up in my binder but the Pilot really elevates the writing experience for me. So if you can, get them both, but if you already have a TWSBI, consider saving up for the Pilot Custom Heritage 92.
(Disclaimer: Both pens are my own. The Pilot was bought second hand, possibly on eBay, 4-5 years ago. The TWSBI was purchased from Lemur Ink.)