I have used GT, Beeman, CE and Axis. For everyday shooting my choice of late is Blems from Big Jim. I also found the cheaper Beemans fragile. The CE are a little heavier and I have yet to break one. For a hunting arrow I use the Axis. Easy to tune, heavier than some others and footed almost un breakable.
Price is the only reason I have not tried the tapered carbons. I am long on Axis shafts right now.
Heavy Hunters are another option, I know they are heavy but have seen them break rocks at the range.