Should I keep music on my Ipod or switch it to my Iphone 5?

So I just got an Iphone 5. But I had an Ipod before that. Should I put all my music on my iphone or just listen to it on my Ipod? Will putting it on my Iphone take up a lot of space? I have 186 songs and my Iphone is 16 gb. Should I keep my music on Ipod or switch to Iphone?

Put it in your but

I don;t understand why you think this is information that you need somebody to tell you. Do whatever's easiest for you.

"Will putting it on my Iphone take up a lot of space?"

No more than it takes up on your iPod. Here's an idea - try checking iTunes - it tells you how your memory is used on your iPod and iPhone, and how much space x number of songs takes up.

"I have 186 songs"

Song capacity isn't really measured by number of songs - length is somewhat better.

I have about 650 3 minute songs taking up about 2GB.