Dynamic microphones are great for capturing sounds directly in front of them while rejecting the majority of the sound around them. This makes them particularly handy for getting a focused recording in less than ideal environments ie a vocalist on stage, a snare drum amongst a whole drum kit, or a subject in an untreated home studio.
The right mic for you all depends on what you are recording, where you are recording it, and most importantly, how do you want the final recording to sound.
If you have trouble choosing, book me in for a quick chat to discuss your needs. I have a very high success rate of matching the right gear to my client's needs and budgets.