Reason for yourself which one seems real to you. Simply compare the two Heavens in the books, and see what you get.
Quran's Paradise talks about activities such as eating and drinking wine, being rich and served by many servants, getting numerous female companions for males and other such pleasures.
The Bible, however, expounds in its glimpses that in Heaven we will be "like angels" and thus not getting married at all, that we will "see God as He is"/see His face (relationship), be "manifested as sons of God" (angelic nature), that Heaven is "not eating and drinking, but joy in the Holy Ghost", that God is preparing unimaginable-to-man things for those that love Him (relationship), oneness in spirit (relationship), constant ongoing prayer of saints in Heaven, voices crying to God for justice, worshiping and serving GOD (in contrast to men being served in Quran).
God also being spirit Himself, reason for yourself, which heaven of these two seems more like THE Heaven to YOU? Which one looks in comparison to be invented by the wishful thinking of man, aka satan's impostership? Honestly now...
Tangible descriptions follow Quran Heaven, versus strong spiritual/holiness, intangible descriptions that follow Bible Heaven. Muslim paradise is simply like, there will be plenty of water in there. That's it. Just what someone living in the desert in the 5th century would like to hear. Muslim paradise will have milk, water and wine. Sounds good, until you compare it to the Bible and find that these drinks are completely void of spiritual meaning in Quran. It's all only for drinks and merriness.
When there is drink or food described in the Bible, it's typically a parable and the spiritual meanings are expounded in New Testament (the reveal). In the Bible, water is the Gospel of Jesus; wine is the righteous teachings of Jesus, and so on. Observe how the Bible refers to food and drink, from milk to manna, for the purpose to illustrate receiving the words, instructions and life from God, it's all about relationship and fellowship with God and tied with meanings which reiterate themselves consistently throughout the whole of the Bible. We are down here because man fell off the life-giving fellowship with God. But Quran simply ends at eating and drinking.
I could write much more, but this is just what made kinda the heaviest impression on me when I was reading Quran in the past.
God bless