Amtrak's business class product is all over the place on a soft and hard product spread. And honestly it is a bit of a joke. You don't see Airlines with ten different versions of it.
Acela: Business class is 2-2 Seats. No amenities. It is just a nice name to make the "Elite" passengers feel like they are part of the elite despite being equivalent to a European 2nd Class Car.
Carolinian: 2-2 Seats in an Amfleet I car the rest of the train is also Amfleet I so this is a slight hard product upgrade, a pillow, complimentary drinks (Up to the discretion of the LSA, I've wanted something and been told to pay for the item 50 percent of the time), and a dedicated business class attendant (Is this really a perk).
Cascades: 2-1 Seats on the Talgo. A coupon for food or beverage from the Cafe worth $3, priority boarding at PDX, SEA, and VAC. As well as priority at customs at VAC.
Coast Starlight: 2-2 Seats on a Superliner. Literally the same layout as coach, but the chairs have leather instead of cloth. Priority boarding in SEA, PDX, small coupon for food/beverage on board the train.
Downeaster: 2-1 Seats on an Amfleet I/Cafe. Free drinks.
New York State Trains (Ethan Allan Express, Empire Corridor, Maple Leaf): 2-1 Seats on an Amfleet I/Cafe. Free drinks on trains that offer meal service (Anything west of Albany), nothing on the NYP-ALB turns.
Illinois/Michigan/Missouri Trains: Generally it is a 2-1 Amfleet or Horizon car split with the cafe. Sometimes substitutions occur however. Complimentary coffee and tea, lounge access, dedicated attendant (not an amenity).
Lake Shore Limited: 2-1 Seating in an Amfleet I Cafe Split Car. Free drinks, Lounge access at Chicago.
Northeast Regional: 2-2 Seats on Amfleet I. Maybe free drinks but the website isn't clear, and I refuse to spend the extra money for it normally.
Pacific Surfliner: 2-2 Seats on a California Car. Free Glass of wine, free drinks, snack pack, lounge access (LAX), priority boarding (SAN), and a dedicated attendant. Most importantly a reserved seat.
Palmetto: 2-2 Seats in an Amfleet I which has more seats than the Amfleet II coaches in the same consist. Complimentary drinks (again see comment about varying on the items).
Pennsylvanian: 2-2 Seats in an Amfleet I which has more seats than the Amfleet II coaches in the same consist. Complimentary drinks (again see comment about varying on the items).
Vermonter: 2-1 Seating in an Amfleet I Cafe Split Car. Free Drinks.
When you look at this its very unprofessional how there are 5 different hard products. Then look at the various soft products of which there are 6 ranging from nothing to something great like the Pacific Surfliner. We all try to make excuses for Amtrak's lack of consistency but that doesn't matter to someone who uses Amtrak for transportation from point A to point B, they aren't fans. They don't care if there is a valid reason for a service. If they buy a ticket to go from SAN-LAX for a flight to New York, then connect to an Acela for NHV or PRV they are experiencing two vastly different soft products. One is amazing, and one is in name only.
Look at United Airlines they offer two business class products. Polaris which is the best of the best, and United Business. No two types are on the same aircraft, and for the most part Polaris isn't in the domestic market so it doesn't effect the business class here. Soft product: Food/Drinks are free (including alcohol), free checked bags, priority security, outlets, and other nicities. But the thing is if you board one UA flight from CLT-ORD, and then connect ORD-DEN, DEN-PDX the product is 100 percent consistent between the three flights.
There is no good reason for Amtrak to have the many different varieties of business class. They need to pick one single hard product and stick with it. My recommendation is 2-1 Seating. Yes there are fewer seats on an all 2-1 Car on the NEC but you will get a better yield, as you can sell more tickets at a higher bucket as people always will upgrade if they can. Next they need to pick one single soft product that befits the extra charge I would argue the Cascades or the Pacific Surfliner offer the best soft product.
If Amtrak could do that they would have a very good business class product that would get higher yields, and have consistency.