hey tulipng,
there are 4 shopping malls which are very similar to each other, abt e same as argle centre in mongkok. alot of small small little shops selling stuff for ladies.
1) argle centre, mongkok
2) allied plaza, prince edward
3) island beverly, cauewaybay
4) forgot e name of e one located in tst, need to check wif my fren 1st.
argle centre & allied plaza are very similar, abit messy, things are cheaper.
island beverly & e one at tst are more neat & organised but then prices are more exp but of better quality.
i would suggest, for day 2, u can drop by sham shui po area as well, alot of wholesales shops.
for day 3, u can go to citygate mall at tung chung then take mtr straight down to central, shop ard there and follow by causeway bay area.
for day 4, if u can shop ard mongkok or tst area lor.
actually everywhere is shop or malls. so u don to worry much.
e last time, when i stayed at prudential, i would jus walk. walk left take me all e way down to tst wif shops all e way. walk rite take me to mongkok wif shops all e way as well. ^^