Should I get an iMac or not?

I'm thinking of getting an iMac because my main PC is getting really old and bad at the moment and so does anyone who owned/owns one recommend it and if not what PC would you recommend me getting?

I'm using it for normal school work and minecraft also. Will it run it ok and everything?

Depends what you are using it for. If it is just for school work and minecraft why not just build your own computer, check out /r/buildapc