Hi guys, I wanted to purchase a mega zoom camera but having difficulties in choosing one of this 3 brands?

Canon PowerShot SX50HS 50x zoom, 12mps
Nikon Cool Pix P520 42x zoom, 18mps
Panasonic Lumix FZ60 24x zoom, 16 mps

Currently still at beginner level, using Panasonic lumix GF3, wanted something to zoom further as often go for concert and like taking shot at animal/ insects.

*do not wanted to invest more in lens therefore wanna let go my compact 4/3 micro lens GF3 and go for this mega zoom camera....

Dear all sifu,

Kindly advise on which is better and more value to go for it.... As camera knowledge is too wide, and I m just a very beginner so.........

Thanks a lot in advance...