I work for a rental company as you all know, and I've worked hondas and briggs and scrapiron for a long time. Hondas win hands down. After working on them for so long, I wouldn't buy a briggs if you paid half. I know they're somewhat reliable, but they are harder to work on in my opinion. Show me a Honda that doesn't start, and I'll troubleshoot it in about 5 minutes. Hondas are more forgiving when not started in awhile. Some of our generators, pumps, Edco grinders, etc etc are all Hondas, and a few of these sit until they're needed. They get started on average about every 3 months. Do that to a Briggs and 50/50 chance it'll leave you.
Now, I bought a Generator made by Wen from Pep Boys last year just before the hurricane, 5500w continuous, for the awesome price of $371. It's a honda knockoff, and I've already verified I can get parts at work from a similar honda engine (think it's the exact same carb) It ran 24/7 for 10 days. It ran my 65 with 2 x 250w mh, 2 x 110 vho, all the pumps (6 of them!) an aquaclear filter, my 18 gallon with 192w pc's, another aquaclear filter, a seaclown skimmer, 2 more pumps, a couple of fans, my refrigerator, my 65" TV (not plasma), satellite, and DVD player. I can unplug the fridge and lights to fire up the hot water heater for an hour or two, take a nice hot shower, plug in the washer, wash clothes, plug in the dryer and dry clothes. Last time I started it was early Nov last year. Put new gas, changed the oil, new spark plug, fired right up last week! If it runs this year again, I'll consider it a great investment no matter how long it lasts. And if it dies, I can fix it. Only problem is, it is noisy. I live in Davie, where everyone owns a gun, and I swore I'd wake up one morning and it'd have a bullet hole in the side. LOL My dad gave me a silencer that I'm going to try to adapt.