We have partnered with TradePub to bring you free industry magazines and resources - no coupons or credit cards required!
Visit: englishforums.tradepub.com
・He has a different opinion from mine.
・He has a different opinion from others'.
(2)
・He has a different opinion from me.
・He has a different opinion from others/other people.
Are the examples of #2 grammatically OK, or not?