If the pension provider is the same as, or linked to, the bank, I would be suspisious that they were just after the commission or charges on the pension. It may be a good idea to look into a low-cost PRSA to pay your savings into, rather than going with what your bank suggests.
If you wait a few weeks, hyou can avoid this year's new pension levy, but still (depending on the tax rate you pay) get higher rate tax relief on your contribution.
That said, once the money is in a pension, your access to it is restricted, while in your savings account, you can get your hands on the cash a lot more easily.