I have tried a few others, but i now remain an Earnie Ball fan for life. i rock a Dean, Ibanez and soon to be delivered schecter, all 4 string, and all will have Earnie Ball Regular slinky 105-50. i use them for shows, recording, practice, and they last a long time, and are perfect for tunings like drop D or C( drop C in my case), and you can go lower if need be. the biggest reason you should also choose these strings, is for the fact, that just about anywhere you go, if you need them, they are there. you can even go to most Best Buys to find these strings. so, no matter where you are, they are available. between the name, availability, sound, and reliability, get Earnie Ball reg. slinky 105-15.
just remember, with different string size changing, you will need to adjust bridges, and sometimes trus rods, to make this sound be great and play right. alot of people change strings, and dont do this and switch back to original because of buzz, and other reasons and dont realize, these things have to be done. and you can do them yourself, work on a cheap bass or guitar first to get a feel- rec.