If you have no balance transfer to avail of introductory offers and you will clear the balance every month, I would still go for a lower rate card, just in case things don't work out as planned.
If you want 'value' from your credit card, go for something like that offered by
www.tesco.ie (Clubcard points), RyanAir (free flights, but restrictive and high enough interest rates),
www.pigsback.com (offered through [broken link removed] if still available and gives you 'Piggy Points' to use towards certain goods and services), American Express Blue (offered through Bank of Ireland) that gives you 1% 'MoneyBack' against your purchases (the downside is that Amex cards are not as widely accepted as Visa and MC). The Ulster Bank Zinc card gives you €40 cashback when you spend €5000 (in a year), and this would cover the stamp duty of €40 payable each year,
You should also comapare cards in trems of additional charges, e.g. cash advance fees (when you use your card to withdraw money from an ATM), foreign exchange margins (you will be charged a margin when you buy in a foreign currency but are billed in euro), late payment fees (maybe not relevant in your case, but you never know.........) etc.
It's also useful if you can check your balance and view a 'live' statement online (if you have your current account and credit card with the same bank).