I've usually bought cheaper helmets, and have now owned three HJCs and two Scorpions.
I bought a new Scorpion EXO-R420 earlier this year, but found it was too tight. I couldn't return it at that point, so I bought a new HJC i10 in a size larger than usual. Unfortunately, that one is slightly too big. Thankfully I've lost some weight and now the Scorpion fits me. Both of these helmets are currently in the $150-160 USD price range.
The Scorpion EXO-R420 is a nice looking helmet with some good features, but I don't love it. It's louder than I'd like, the ventilation is just okay overall, the opening/view is good, and the visor mechanism is okay but feels kind of cheap (because it is). One thing I like is I can keep the visor just very slightly open, for a little air flow and to prevent fogging in chilly and/or wet weather. My big gripe, however, is while I like the visor's center latch tab (so I can raise the visor with either hand), the space under that tab needs to be larger. I find it difficult to get a gloved finger under there to open the visor, especially while moving. Lesson learned: Try on helmets with your normal riding gloves, on, to see whether you can manipulate the visor, vents, and (if equipped) internal sun shield/visor).
The HJC i10 feels like a more expensive helmet than it is, and is a step up from the Scorpion. The i10 is quiet enough (quieter than the R420 above), fit and finish is very good, the materials are good, the view is good, and the visor mechanism feels like better quality than a $160 helmet should have. The visor's center latch is better than the Scorpion's, with a little more room to get my thumb under it when closed. Like the R420, I can keep the visor slightly open, but you have to finesse it, otherwise it will close on you (as it's really designed to do anyway).
Of the two lids, I prefer the HJC i10, though I wish I'd bought it in white instead of dark blue, just for better visibility to other motorists. I'm really between sizes at this point, as the i10 I bought is too big but the next size down is too tight. I thought about buying the next size down and ordering a thinner set of cheek pad for it, but I'll probably just stick with the Scorpion for a while. I may sell the HJC or keep it to use during cold weather rides when I need a little extra room while wearing a balaclava under my helmet.
I've been eyeing a Shoei RF-1200, which are on sale in many places due to being replaced by the new RF-1400. I've tried this helmet on a couple times and I like it, but it's quite a bit more expensive than what I usually buy, though it's also a big step up in quality. Maybe next year if I can still find one on sale that fits me.
