recently ripple reached 1 usd and is predicted to go upto 5 usd by the end of next month.
while eth has rose 100usd in the past week and is being quite stable.
ethereum though not as accepted as bitcoin but still can be used unlike ripple.
so my question is whether i should invest in eth or ripple given i may need to take out my money back any time.
That's an interesting question, considering recent events : Ripples former CTO Stefan Thomas is going up against ethereum with the launch of a new smart contracts platform. It is codius, an open source project that Ripple released in beta in 2014, but shelved the following year. Now he is relaunching codius as the technical backbone of his company, coil.
Using codius, coil aims to change the way websites monetize their content.
To your question now:
I think you should go for Ethereum because it is more acceptable than Ripple and the percentage increase is even higher. Go for ethereum.