1) Some argue/claim/believe/hold that... But others set forth a different argument about/oppositive views on the matter in question.
2) Some advocate/endorse/favor/are for ... Yet others stick to/hold on to/cling to the opposite views/argument/points.
3) To some people's mind/From some people's point of view/In the eye o f some people, the matter in question is/seems/should be/means...But to others' mind/from others' point of view/in others' eyes, it is just/quite the other way around/contrary/opposite
4) Some respond/react to...by...But others behave/act in the other direction/in the opposite way.
5) Some take the view that...And/But on the other hand, others argue for the opposite view that...