The 2nd ones would be a marginal improvement, going by specs, but remember not to buy without hearing, put a day aside to visit some audio shops, listen to a set of FOCAL POLYGLASS then tell me £40 Alpine sound good, or any other speaker of that price, just simply no comparison, everyones ears are different.
I like infinity EMIT K tweeters but to others they sound really tinny, not cheap though!!
tabetha