My integrated amp line up right now includes Scott 299B, Scott LK-72 (very similar to the 299C), and Fisher X-200.
For an EL84 type (7189) amp, the 299B is hard to beat and will get you about 20WPC. Highs and mids are startling and bass is good and tight. I've owned an LK-48B (basically 222D), restored a 222B, and completely rebuilt a Dynaco SCA-35. All were very good, but I have consistently preferred the 299B.
For >30WPC from 7591's, I have the Scott LK-72 and the Fisher X-200. The X-200 is my favorite integrated amp right now. It pretty much has it all--clarity, sound stage, highs, lows and plenty of very tight bass. I've been playing it in a set of Bozak 302A Century speakers I'm refurbishing and it sounds wonderful. Every time it's put back in the rotation, I say "wow!" So, +1 on nj phoenix endorsement of the X-200.
The LK-72 has consistently sounded darker than the Fisher (both have big output iron), and I did a little tube rolling and ended up swapping a set of Mullard 12AX7 line amp tubes for the Telefunkens that were installed and it made a big difference. Continuing the LK-72/X-200 shoot out in the Bozak's and my Klipsch KG-4's, but the Fisher remains on top, at least for now!
One final thought--I have a Sherwood S8000 IV receiver with a 7868-based 30WPC power amp and it sounds very nice indeed, even compared to stiff competition from the X-200 and LK-72. I've had to do a lot of work on the tuner, which has distracted from the pure listening, but I wouldn't discount Sherwood gear at all.
One final thought (for sure this time): I've heard much positive about the Fisher SA-100 as about the best EL84 amp around and it may be true. Then there's the Fisher SA-300 EL34 amp. I restored an SA-300B and it was awesome. I imagine it would be even more so with a good pre amp.
So many choices! Of all the types described in these posts, there are no wrong answers, I think. Try 'em out, look for the best match with speakers and see what sounds right to you. Happy hunting!