You're still in the throw's of dealing with surgical medications with which they put into you, such as anesthesia. Theis can mess with your taste buds dramatically for a week or two, longer for some folks.
Thus, I suggest you keep trying your favorites. You're no worse off than you are now, with a better possibility of success in drinking.
Also, pay attention to what you think you may like at the moment, even something for which you never cared. This actually worked for me: For some weird reason I had a sense that something I never liked might taste good, and lo! I gave it a shot and I very much enjoyed it, and it still remains something I drink often.
When all else fails, water may be what works. Again, I was never a fan of water as it upset my stomach when I drank water in any appreciable quantity. Post-op, in trying to figure something out, for whatever reason water worked well. No one was more surprised than me.
Keep an open mind and keep working at it until all the anesthesia and other drugs leave your system. Fluids may help flushing the stuff out of your system.
Hang in there.
Good luck,
Tek