in your case I would use 'defaul' if you dont want to have clustering. Otherwise all.
all - is more or less default but enable clustering
default - the common used profile
jbossweb-st - as the name is strip to typical web profile
minimal - only the core services (I use this to enable only what I need)
standard - this is a profile conform to the JEE spec (i.e. call-by-value and only conform services)
I use always all or default as base and strip unwanted services.
For AS7 you might have some classloading issues. Also the complete server configuration and administration will be different you should read the AS7 AdminGuide.