I love the Polish Beskidy Mts - they come in various sizes and shapes. This said, Mala Fatra is absolutely stunning. It's like different parts of Beskidy (which stretch over 500km in PL only, not to speak about CZ, SK and UA!) are taken and squeezed into a small range (just 50km long and 17km wide at most). There's everything I see in Beskidy plus a bit of Pieniny and Tatry.