It’s hard to compare lines across time and across models, so I’ll just give my experience.
I bought the G35 in 1993, the year it won the Motor Sport Car of the Year, though I didn’t know that. It was my first luxury car so I didn’t have anything to compare it with, but I loved that car. Power, style, equipment, seating, everything. The acceleration was so terrific that I called it teleport mode.
After a decade I wanted a hybrid. The Infiniti hybrid felt meh. Nothing about it stood out. I got a good deal on the Lexus ES 300h hybrid. That was a different experience. The car was built for sitting in royal comfort and not for the sportiness of the G35 and also had bells and whistles up the wazoo. It took quite a while to get used to the change, but, heck, I’m past retirement age and creature comfort won. Short version: the sporty car strided and the luxury car glided.
Both cars were excellent in their way. I never had any mechanical problems with either. Routine maintenance only. Infiniti doesn’t seem to have gotten back its 90s mojo, though.
I test drove an Acura but it did nothing for me.
My wife and I downsized to a single car, a plug-in hybrid Kia Niro. Nobody’s ever heard of it, but it proved to be the perfect car for the pandemic. Plug it in, get 24 miles of electric power, do all the local driving, stick it in the garage, plug it in, get 24 miles of electric power. We needed gas only a handful of times in 2020, since the gas engine gets around 50 mpg. Yes, it’s smaller and has no oomph, but the top model has all the electronics and doodads of the older Lexus and a few more new ones for 2/3rd the price.
Test the cars until you find the one that fits you. Check to make sure it doesn’t have noticeable problems or reliability issues. Otherwise, brands vary too much over time to call one over the other.