For architectural exteriors I use a Linhof M679 with a P25. It's a bit bulky for interiors because you really need wide, clear access right around any view camera to operate it efficiently, and if you're backed up into a corner in order to get lens coverage it can be a slow and clumsy experience.
So for interiors I sometimes use a Canon 5D or 1Ds MkII DSLR with the three Canon tilt & shift lenses. It's a fast, fairly compact solution, and gives pretty good results. But, if you want waist level viewing on the Canon you have to use their cheap and nasty angle-finder. Personally I usually shoot interiors (dometic or commercial, not industrial) with a camera height of about 3.0 to 4.5 feet, and I llke to spend a long time scrutinisinging the scene in the viewfinder, letting my eye adjust to the brightness level and making that mental transistion from 3-D to 2-D. The Canon just isn't a good tool for this way of working.
Most times for interiors I use the P25 on both a Hasselblad 903 SWC (with a ground glass focusing screen) and a Hasselblad Flexbody with regular Hasselblad lenses.
The Hasselblad Acute-Matte focusing screens are a joy compared with the screens on either the Canon or the Linhof, especially with the dedicated x3.3 magnification finder that gives a big, bright and upright image. You can see right into the deepest shadows so just it's like looking at the shot on a lightbox. The 38mm Biogon on the 903SWC has zero distortion and is extremely sharp, there's some vignetting but that's easily cleaned up in Photoshop. For movements the Flexbody offers about 15mm rise and fall and well over 20 degrees of tilt operated from the rear standard.
The Flexbody's other main advantage is that it's a great tool for close-ups, with a 22mm built in bellows extension. So if you tend to shoot a combination of wide establishing shots of a room together with close-up details then it's a viable and competent solution.
Still, everything in photography is a compromise and the Flexbody's main shortcoming IMO is it doesn't allow side and vertical shift in combination. It's also discontinued, but there's plenty on Ebay and they usually sell for under £1,000.