It's really simple -> If you have a valid reason why something should look or work a certain way and you can prove it you should stick to your choice. Then your job is to convince others that your decision is the right one. That includes showing them all the other choices and explain why they won't work. You need a lot of experience and knowledge to be able to do this.
If you are just sticking to your opinion because you personally like it, that means even you're not sure that it'll work. Then you shouldn't stick to it.
It's really simple -> If you have a valid reason why something should look or work a certain way and you can prove it you should stick to your choice. Then your job is to convince others that your decision is the right one. That includes showing them all the other choices and explain why they won't work. You need a lot of experience and knowledge to be able to do this.
If you are just sticking to your opinion because you personally like it, that means even you're not sure that it'll work. Then you shouldn't stick to it.
Bam!