See, different courses have their difference structures and views.
MCITP: The Microsoft Certified IT Professional (MCITP) certification helps validate that an individual has the comprehensive set of skills necessary to perform a particular job role, like database administrator or enterprise messaging administrator. MCITP certifications build on the technical proficiency measured in the Microsoft Certified Technology Specialist (MCTS) certifications. Getting an MCITP certification implies and validates the fact that you are equipped with required knowledge and relevant experience in utilizing the products and solutions of Microsoft.
RHCE: This is basically from Reh Hat. Earning this cert, u have to gain core linux system related knowledge and hands-on experience. Hiring RHCEs allows many organizations to increase their ratio of servers to administrators, enabling them to be more cost effective in building out their infrastructure without needing to bring on additional resources.
CCNA: Most probably the most famous course in the Network industry. CCNA certification is a second-level Cisco Career certification. CCNA certification validates the ability to install, configure, operate, and troubleshoot medium-size routed and switched networks, including implementation and verification of connections to remote sites in a WAN.
So, the above writings, u understand that, the three fields are separate to each other. There are no of lucrative offers. But.... amongst the three, my recommendation for RHCE and then CCNA. Salary depends on that company who employed u according to ur hands-on experience and depth knowledge. Though u r a fresher, so ur depth knowledge and ur hands-on practice will give u right returns.
Hope it may help u !