just to throw in a spanner - the bank agent whom I met to open my BS and bought UT said that ETFs are not included in the eligibility for the BIs for BS.
idk why really...
but I think it's best to get black and white from your RM. my RM bo hiew me and threw me to the agent :\ maybe see me no up.
but anyways, if it's for eSaver, I think any product purchased as wealth holdings would suffice as based on their TnC.
for BS, since need to buy $20k, better to get a UT which has least volatility, so that can offload anytime. not sure about equities - although cheaper (fees), may be subjected to higher fluctuations?