sir ang hirap magdecide di ba. hehe kasi parehas naman talaga maganda yan and they have almost the same price range. in short there is no right or wrong answer to your question.
but we can only provide comparison between the two to make your life easier, the polk audio speakers have 6 inches woofer, the anthony audio speakers have 8 inches woofer(slightly bigger),with additional woofer and tweeter at the back for a wider soundstage.
my observations are: yung polk audio set in general mas maganda konti sa music because of the clarity and details, yung anthony audio lamang naman slightly sa movies (maybe because of the extra speakers at the back of the left & right speakers and extra speakers at the sides of the center speakers). hence it has wider sound dispersion.pero i noticed may mga genre ng music na mas maganda yung anthony audio titus.
yung polk audio ideal sa small room and medium room, yung anthony audio titus gold set ideal sa medium sized room and large room.polk audio puwede isabit sa dingding(sound port in front), yung anthony audio hindi puwede and yung placement should have space at the back(sound port at the back).
if brand conscious, go for polk audio speakers because they are the safe choice because of the years these have been mass produced. if you are more adventurous and want high performance speakers,go with anthony audio titus gold because they are crafted by no other than master anthony himself.
as to resale value, mas mataas ang price ng polk audio speakers sa anthony audio because of the name(what the heck).as to extra service, may free delivery ang anthony audio and sa repairs,no problem kay sir anthony, basta dalhin mo lang sa kanya, he can repair it for very minimal cost. anyway matagal ang lifespan ng speakers, baka naka tatlong palit ka na ng av receiver, di pa sira ang speakers mo.
in addition, puwede ka magrequest ng piano black kay sir anthony or whatever color sa kanya(meron pa nga red noon), sa polk audio, walnut at charcoal black lang ang choice at depende pa kung ano color available dun sa audio store na bibilhan mo.
ang polk audio, readily available sa mga audio stores. ang anthony audio, usually oorder ka muna sa kanila for a few days lead time prior to delivery.pero kung gusto mo yung demo unit, puwede naman kunin sa anthony audio stores.anthony audio madalas may pa raffle ng speakers, polk audio never pa nagparaffle ng free speakers.
its better if you audition both, and let your ears decide kasi we have our own preferences on sound. what may be nice sound for me may not be nice to others. parang food, kanya kanya yan ng taste.
pero whatever you choose in the end, you are still correct because there is no right or wrong choice for this.