Fermonsters are great - I used them when I first started brewing. Easy to clean, fairly inexpensive, clear, light, don't shatter. Also, I have seen posts on they can modified to do closed transfers. The one drawback is that they are PET and can scratch.
For the past 20+ batches, I switched to an SS Brewtech Brewbucket. I think it is fantastic. Expensive, but significantly less than true conical. Stainless steel so very sanitary, very easy to clean, you can easily do closed transfers by pushing low pressure CO2 down the airlock hole. While not a true true conical, it has a conical bottom to rack your beer off the trub, yeast, hops, and is a lot easier to maintain. I find that the stainless steel conducts heat and cold much better than plastic which helps with fermentation temperature control. Some brewers don't like that you can't disassemble the ball valve, but I just boil for a min or two prior to using. Only drawback is you can't see what is going on inside and have heard that the stainless steel may interfere with wifi enabled hydrometers like Tilt.