Hi,
I'm normally not very friendly with monopols but if I had to spend time in learning, I'll choose Adobe products.
This company has now entire suite solutions with no hassle between platforms.
In agencies it is by far the most used, they have very good seminars etc...
I use Premiere Pro and Flash.
Of course there are many very good options but nothing that I know with such an integration than Adobe.
Cheers,
Fred.