I'll not lie to you mate. Different people will tell you different markers, depending on who they are sponsored by, or just personal preference.
Some people love Angels, some love cockers, timmys etc etc.
Once you reach a certain price point all it comes down to is personal preference really. They all perform pretty much the same, but feel a bit different from marker to marker.
I've shot loads of guns, and love my EGO, I've owned it since September last year and never had any problems with it, and maintainance is really easy.
I've owned cockers as well, and they again as long as you don't fiddle with them are very reliable!!
Same can be said for the likes of Angels as well though...
If you haven't already go out to a tourney and try a few markers out and see what you like.