I have used Medtronic, Deltec (no longer exists), and Animas pumps. I have been very pleased with the Medtronic and Animas pumps. I used Medtronic for 8 years. I found their pumps to be very reliable, only replace it 3x in 8 years. I was always happy with Medtronic customer service, but because I hardly had problems with the pump, I never had to contact them very often. I haven't used a Medtronic in over 3 years now, so things certainly could have changed within the last couple years. I didn't leave Medtronic because I didn't like the products, either. When it was time for me to upgrade again, they didn't have any new features I was interested in, so I decided to peruse some other companies.
Animas, which I'm currently using, is a product I am very, very pleased with. As far as aesthetics go, I like the various colors you can choose from as well as the pretty colored insertion sites. Because I'm going to be wearing a piece of equipment 24 hours a day, I at least want it to be pretty and enjoyable :o) As far as I know, Animas has the smallest incremental insulin doses (0.025 units) for both basal and bolus insulin. This allows you to perfect the doses down to miniscule amounts. The meter and the pump communicate with each other, so the meter doubles as a remote, where you can bolus and take insulin from it (very hand for us ladies who occasionally hide our pumps in places not easily reachable). It uses a OneTouch Ping meter. I have always been happy with OneTouch products, with the exception of the times when the meter begins counting down before I'm done putting blood on it. That's always a bit annoying.
Animas has also partnered with DexCom, a CGM company. I just began wearing a DexCom 7+ CGM almost a month ago and am very happy with the accuracy of the technology and improvements to my blood sugars since wearing it. In the near future, Animas and DexCom are working on integrating the pump and CGM with each other to have one single device similar to Medtronic's pump/CGM. In my opinion, both Animas and DexCom have had excellent customer service. When a replacement is needed, it is immediately shipped out. Regardless of time of day or night, someone is always willing to work with me on my various problems. I have extremely sensitive skin to the adhesives on pumps and CGMs, and they've been very helpful in trying to find alternatives or solutions to keep the allergic reactions at bay.
Needless to say, I think you would be pleased with either Medtronic or Animas. I think both have great products. Essentially, they serve the same functions. It will come down to the bells and whistles basically. What extra features do you like? That's usually what decides it for me. I would like to have a tubless pump, but I want a smaller option. For me, at least at this point, I think the OmniPod is too large.