Go with sandisk ultra series without a doubt. Priced right with 5yrs of warranty. Pretty good after sales service. And the biggest thing is that they are quite reliable. More than kingston, transcend etc.
Also, you must know that they make there own sd cards and are infact pioneers in this field. A lot other well known companies get there cards made from sandisk and put there name on it.
I have had more than 8 sandisk sd cards and 5 pendrives of various sizes. Had problem with only 1micro sd card 32gb. Which was used violently for 2.5yrs before it gave up. And sandisk replaced it with no questions asked.
Get sandisk ultra class 10. Avoid class 4 now. As processing power of mobiles and tablets have increased drastically. So, a class 4 would start to bottle neck your device or it won't feel faster during taking pics, or transferring content etc.