Hi David,
Well, the best CRM is really the one that matches the requirements of your business, because what works for one organization does not necessarily works for another. However, there are some common features that makes one system more attractive over the other. I would like to recommend bpm’online CRM which is cloud application for marketing, sales and service (https://www.bpmonline.com/crm-products ) and can be easily customized according to your business needs. Check the capabilities and get a hands-on experience with no strings attached at: https://www.bpmonline.com/demo/bpmonline