Hortonwork and cloudera companies are merged now so, which certification would be better to take? Please share your thought on this one.
In my opinion it depends on your present case and career goals. For example, if you are (looking for) working as an HDP Administrator, no Cloudera certification would be helpful.
Hortonworks certification exams are being re-branded as 'Cloudera HDP certifications' since there is a definite plan to maintain HDP production for a few years.