I have 2 bikes with rim brakes and one bike with disc (two if you include my wife's e-bike). Not much of a difference when it comes to most maintenance. I would say disc pads are a bit less fiddly to change then rim pads. No point in comparing the weight of the different bikes. Both of my rim braked bikes are carbon, my disc braked bike is aluminium, and my wife's is an e-bike, so both are heavier than the carbon bikes. I like the stopping power of the disc brakes in the wet. In the dry, it doesn't much matter, but there is a reason my disc brake bike is the main bike I use in the winter for commuting and club runs.