Just choose one based on your preferences.
They have both flaws and problems if you use them, only one or two important component you should not leave it and that's common sense and knowledge.
For sure some articles suggested to use IS is because of very simplified product and combined all into one, however the question always came is how effective nowadays? Just survey yourself on the things done on internet and rate the risk level covered.
The lower risk then few security programs needed, the higher risk then little combination needed at all.
But you need to conduct a backup for overall safety precaution.