Minority of 1?
Generally I don't have a problem with ads as I can avoid them if I want to - mostly.
Like it or not and previous comments suggest everyone is in the don't like group, ads do serve a purpose and can raise awareness of a new product, service, etc. which may (probably won't but may) be useful.
There are 3 types of ads I do hate however.
Pay day loans and their friends - mainly because these are aimed at the less well off who then have to pay exorbitant amounts back in return. Spot the shark anyone?
Charities - whilst I support charities and the work they do I worked out once when I wasn't in work that if I sent the £2,3 or 5 pounds to each charity advertised on TV that day I would have nothing left in the bank (including the overdraft I would have taken out specially for making these payment). Why do we have so many charities and how much do they (subsidized no doubt) pay for all the adverts. Whilst I can understand the reasons, why set up yet another cancer charity in memory of my 'special person' who died of xxxxx cancer. Why not fund raise and give the money to an existing charity in memory of that person. In theory more money should feed through to those needing help, or research etc. instead of all the admin costs for each charity. Of course this leads to more questions on how money is spent by the charities, but that is a separate discussion.
Finally the big one. I have no problem with ads on the web. However, they should not be pop up, pop under, buried, bandwidth hungry, overly intrusive or cover most of the site. If they advertise a product for example and say 'Click Here' for a video with more info and I choose to click then it is my choice to watch the video. None of this should be force on me so I am struggling to get the info I am actually after.