Well, this is an opinion question, so I can't say blue for a fact....... But considering the Nintendo 3DS doesn't come in red yet, I suggest you get blue.
Red
Blue and red
The colors the Nintendo 3DS comes in are red, blue, black, pink, and purple.
Although red Nintendo 3DSs were shown in some of the pictures at E3 2010, Nintendo hasn't announced the color red for the 3DS. Currently, there are two colors, Cosmo Black and Aqua Blue.
There USED to be a Red 3DS, But Nintendo decided to postpone the selling of the Red 3DS and sell it at a later time than the release date on 3/27/11. The Blue 3DS is going to be sold instead.
No. At this time only available colors are Blue and Black
If your Nintendo 3DS is showing both the red and blue light at the same time, it means you have 2 different notifications. The red light means your battery is low, and the blue light means that you have received a notification.
Whichever you like better. I got a red one they just came out with a pink one though.
Nintendo has currently announced no plans to release a red 3DS in any region.
Nikmon-Normal (Nintendo Wii, Nintendo 3DS) Nikmon-Red (Nintendo DSI, PC) Nikmon-Blue (Nintento Wii) Nikmon-Yellow (Nintento 3DS, PC) Nikmon-Green (Nintento Wii, PC) Nikmon-Purple (Nintendo Wii, Nintento DSI, Nintento 3DS) Nikmon-Orange (Nintento Wii) Nikmon-Brown (Nintento DSI, Nintendo 3DS, PC) Nikmon-Black (Nintendo Wii, Nintendo DSI)
Red
A red one