I held a quite decent bag of SONM but after doing some thorough research and comparisons I sold all and put it on a safe bet for the long run, i.e. iExec / RLC.
My reason?
Decentralized computing / super-computing / grid-computing is a buzzword any of them 3 companies (RLC, GNT, SONM) is using. However this is some heavy shit technology wise and requires a lot of experience. It's not like you can just make an ICO with that theme and expect to have something decently working after a few months. So why iExec / RLC? Because they (their team) has been working on this field for several years now (even several decades). It consists of industry-proven researchers who hold Ph.D.s in this area and contribute to the top-notch research papers in the field. The iExec / RLC platform uses an open-source software the team has been developing on over the last 16 years.. This platform is already being used in industry projects (e.g. Larage Hadron Collider - CERN). They have delivered their V1 on time and are currently working on V2 which is scheduled for coming May. They have in fact been talking with IBM and were invited to the IBM Think Days 19-22 March 2018 where they'll presenet about Cloud Security.
Current Status:
So why is it that iExec / RLC who is obviously miles ahead of GNT and SONM has a lower market cap than those two? Simple. It's marketing. At the moment they do not focus on marketing, however they stated that having outrolled V2 in a few months, they'll focus on tier-one partnerships and marketing which will be a lot easier if you have a solid working version of your product not just hype and a whitepaper. The price of iExec / RLC is far too low at the moment, which IMO is the best time to get in. Note however, that as soon as V2 is online and the marketing machinery starts, this project will take off.