All have almost perfect uptime at 99.99%. And also I would say all of them contain sufficient customer service and support. They will answer all your tickets swiftly and also provide solutions for all your problems until the issues have been solved.
However, if you want me to rate about the response time(Live Chat 24/7), based on my experience using all these 3 hosting providers, I would say:
1. Siteground (Countless support admins)
2. ServerFreak (Limited support admins but still manage to answer you at 3AM)
3. Exabytes (Limited support admins and most of the time you have to wait for their reply through Email)
I would say, PLEASE don't go to International Hosting company mainly due to Data-center is located outside from Malaysia region (which makes your site slower to load). It will have no issues for you to use them if you want to go international or if you want to pay extra using CDN.
If your target market is Malaysia only, you might consider the local hosting instead.
If I’m not mistaken, you are not suppose to host website local with home internet plan. Unless you get a business plan ?